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Theorem List for Metamath Proof Explorer - 38001-38100   *Has distinct variable group(s)
TypeLabelDescription
Statement
 
Theoremcdlemkuat 38001* Part of proof of Lemma K of [Crawley] p. 118. (Contributed by NM, 4-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝑂 = (𝑆𝐷)    &   𝑈 = (𝑒𝑇 ↦ (𝑗𝑇 (𝑗𝑃) = ((𝑃 (𝑅𝑒)) ((𝑂𝑃) (𝑅‘(𝑒𝐷))))))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑅𝐹) = (𝑅𝑁) ∧ 𝐺𝑇) ∧ (𝐹𝑇𝐷𝑇𝑁𝑇) ∧ (((𝑅𝐷) ≠ (𝑅𝐹) ∧ (𝑅𝐷) ≠ (𝑅𝐺)) ∧ (𝐹 ≠ ( I ↾ 𝐵) ∧ 𝐺 ≠ ( I ↾ 𝐵) ∧ 𝐷 ≠ ( I ↾ 𝐵)) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊))) → ((𝑈𝐺)‘𝑃) ∈ 𝐴)
 
Theoremcdlemkuv2 38002* Part of proof of Lemma K of [Crawley] p. 118. Line 16 on p. 119 for i = 1, where sigma1 (p) is 𝑈, f1 is 𝐷, and k1 is 𝑂. (Contributed by NM, 2-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝑂 = (𝑆𝐷)    &   𝑈 = (𝑒𝑇 ↦ (𝑗𝑇 (𝑗𝑃) = ((𝑃 (𝑅𝑒)) ((𝑂𝑃) (𝑅‘(𝑒𝐷))))))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑅𝐹) = (𝑅𝑁) ∧ 𝐺𝑇) ∧ (𝐹𝑇𝐷𝑇𝑁𝑇) ∧ (((𝑅𝐷) ≠ (𝑅𝐹) ∧ (𝑅𝐷) ≠ (𝑅𝐺)) ∧ (𝐹 ≠ ( I ↾ 𝐵) ∧ 𝐺 ≠ ( I ↾ 𝐵) ∧ 𝐷 ≠ ( I ↾ 𝐵)) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊))) → ((𝑈𝐺)‘𝑃) = ((𝑃 (𝑅𝐺)) ((𝑂𝑃) (𝑅‘(𝐺𝐷)))))
 
Theoremcdlemk18 38003* Part of proof of Lemma K of [Crawley] p. 118. Line 22 on p. 119. 𝑁, 𝑈, 𝑂, 𝐷 are k, sigma1 (p), k1, f1. (Contributed by NM, 2-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝑂 = (𝑆𝐷)    &   𝑈 = (𝑒𝑇 ↦ (𝑗𝑇 (𝑗𝑃) = ((𝑃 (𝑅𝑒)) ((𝑂𝑃) (𝑅‘(𝑒𝐷))))))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇𝐷𝑇) ∧ (𝑁𝑇 ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ (𝐹 ≠ ( I ↾ 𝐵) ∧ 𝐷 ≠ ( I ↾ 𝐵) ∧ (𝑅𝐷) ≠ (𝑅𝐹))) → (𝑁𝑃) = ((𝑈𝐹)‘𝑃))
 
Theoremcdlemk19 38004* Part of proof of Lemma K of [Crawley] p. 118. Line 22 on p. 119. 𝑁, 𝑈, 𝑂, 𝐷 are k, sigma1 (p), k1, f1. (Contributed by NM, 2-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝑂 = (𝑆𝐷)    &   𝑈 = (𝑒𝑇 ↦ (𝑗𝑇 (𝑗𝑃) = ((𝑃 (𝑅𝑒)) ((𝑂𝑃) (𝑅‘(𝑒𝐷))))))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇𝐷𝑇) ∧ (𝑁𝑇 ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ (𝐹 ≠ ( I ↾ 𝐵) ∧ 𝐷 ≠ ( I ↾ 𝐵) ∧ (𝑅𝐷) ≠ (𝑅𝐹))) → (𝑈𝐹) = 𝑁)
 
Theoremcdlemk7u 38005* Part of proof of Lemma K of [Crawley] p. 118. Line 5, p. 119 for the sigma1 case. (Contributed by NM, 3-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝑂 = (𝑆𝐷)    &   𝑈 = (𝑒𝑇 ↦ (𝑗𝑇 (𝑗𝑃) = ((𝑃 (𝑅𝑒)) ((𝑂𝑃) (𝑅‘(𝑒𝐷))))))    &   𝑉 = (((𝐺𝑃) (𝑋𝑃)) ((𝑅‘(𝐺𝐷)) (𝑅‘(𝑋𝐷))))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇𝐷𝑇) ∧ ((𝑁𝑇𝐺𝑇𝑋𝑇) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ ((𝐹 ≠ ( I ↾ 𝐵) ∧ 𝐷 ≠ ( I ↾ 𝐵) ∧ 𝐺 ≠ ( I ↾ 𝐵)) ∧ 𝑋 ≠ ( I ↾ 𝐵) ∧ ((𝑅𝐷) ≠ (𝑅𝐹) ∧ (𝑅𝐺) ≠ (𝑅𝐷) ∧ (𝑅𝑋) ≠ (𝑅𝐷)))) → ((𝑈𝐺)‘𝑃) (((𝑈𝑋)‘𝑃) 𝑉))
 
Theoremcdlemk11u 38006* Part of proof of Lemma K of [Crawley] p. 118. Line 17, p. 119, showing Eq. 3 (line 8, p. 119) for the sigma1 (𝑈) case. (Contributed by NM, 4-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝑂 = (𝑆𝐷)    &   𝑈 = (𝑒𝑇 ↦ (𝑗𝑇 (𝑗𝑃) = ((𝑃 (𝑅𝑒)) ((𝑂𝑃) (𝑅‘(𝑒𝐷))))))    &   𝑉 = (((𝐺𝑃) (𝑋𝑃)) ((𝑅‘(𝐺𝐷)) (𝑅‘(𝑋𝐷))))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇𝐷𝑇) ∧ ((𝑁𝑇𝐺𝑇𝑋𝑇) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ ((𝐹 ≠ ( I ↾ 𝐵) ∧ 𝐷 ≠ ( I ↾ 𝐵) ∧ 𝐺 ≠ ( I ↾ 𝐵)) ∧ 𝑋 ≠ ( I ↾ 𝐵) ∧ ((𝑅𝐷) ≠ (𝑅𝐹) ∧ (𝑅𝐺) ≠ (𝑅𝐷) ∧ (𝑅𝑋) ≠ (𝑅𝐷)))) → ((𝑈𝐺)‘𝑃) (((𝑈𝑋)‘𝑃) (𝑅‘(𝑋𝐺))))
 
Theoremcdlemk12u 38007* Part of proof of Lemma K of [Crawley] p. 118. Line 18, p. 119, showing Eq. 4 (line 10, p. 119) for the sigma1 (𝑈) case. (Contributed by NM, 4-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝑂 = (𝑆𝐷)    &   𝑈 = (𝑒𝑇 ↦ (𝑗𝑇 (𝑗𝑃) = ((𝑃 (𝑅𝑒)) ((𝑂𝑃) (𝑅‘(𝑒𝐷))))))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇𝐷𝑇) ∧ ((𝑁𝑇𝐺𝑇𝑋𝑇) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ ((𝐹 ≠ ( I ↾ 𝐵) ∧ 𝐷 ≠ ( I ↾ 𝐵) ∧ 𝐺 ≠ ( I ↾ 𝐵)) ∧ (𝑋 ≠ ( I ↾ 𝐵) ∧ (𝑅𝐺) ≠ (𝑅𝑋)) ∧ ((𝑅𝐷) ≠ (𝑅𝐹) ∧ (𝑅𝐺) ≠ (𝑅𝐷) ∧ (𝑅𝑋) ≠ (𝑅𝐷)))) → ((𝑈𝐺)‘𝑃) = ((𝑃 (𝐺𝑃)) (((𝑈𝑋)‘𝑃) (𝑅‘(𝑋𝐺)))))
 
Theoremcdlemk21N 38008* Part of proof of Lemma K of [Crawley] p. 118. Lines 26-27, p. 119 for i=0 and j=1. (Contributed by NM, 5-Jul-2013.) (New usage is discouraged.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝑂 = (𝑆𝐷)    &   𝑈 = (𝑒𝑇 ↦ (𝑗𝑇 (𝑗𝑃) = ((𝑃 (𝑅𝑒)) ((𝑂𝑃) (𝑅‘(𝑒𝐷))))))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇𝐷𝑇) ∧ ((𝑁𝑇𝐺𝑇) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ ((𝐹 ≠ ( I ↾ 𝐵) ∧ 𝐷 ≠ ( I ↾ 𝐵) ∧ 𝐺 ≠ ( I ↾ 𝐵)) ∧ ((𝑅𝐷) ≠ (𝑅𝐹) ∧ (𝑅𝐺) ≠ (𝑅𝐷) ∧ (𝑅𝐺) ≠ (𝑅𝐹)))) → ((𝑆𝐺)‘𝑃) = ((𝑈𝐺)‘𝑃))
 
Theoremcdlemk20 38009* Part of proof of Lemma K of [Crawley] p. 118. Line 22, p. 119 for the i=2, j=1 case. Note typo on line 22: f should be fi. Our 𝐷, 𝐶, 𝑂, 𝑄, 𝑈, 𝑉 represent their f1, f2, k1, k2, sigma1, sigma2. (Contributed by NM, 5-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝑂 = (𝑆𝐷)    &   𝑈 = (𝑒𝑇 ↦ (𝑗𝑇 (𝑗𝑃) = ((𝑃 (𝑅𝑒)) ((𝑂𝑃) (𝑅‘(𝑒𝐷))))))    &   𝑄 = (𝑆𝐶)       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇𝐷𝑇) ∧ ((𝑁𝑇𝐶𝑇) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ ((𝐹 ≠ ( I ↾ 𝐵) ∧ 𝐷 ≠ ( I ↾ 𝐵) ∧ 𝐶 ≠ ( I ↾ 𝐵)) ∧ ((𝑅𝐷) ≠ (𝑅𝐹) ∧ (𝑅𝐶) ≠ (𝑅𝐹) ∧ (𝑅𝐶) ≠ (𝑅𝐷)))) → ((𝑈𝐶)‘𝑃) = (𝑄𝑃))
 
Theoremcdlemkoatnle-2N 38010* Utility lemma. (Contributed by NM, 2-Jul-2013.) (New usage is discouraged.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝑄 = (𝑆𝐶)       (((𝐾 ∈ HL ∧ 𝑊𝐻 ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ (𝐹𝑇𝐶𝑇𝑁𝑇) ∧ ((𝑅𝐶) ≠ (𝑅𝐹) ∧ (𝐹 ≠ ( I ↾ 𝐵) ∧ 𝐶 ≠ ( I ↾ 𝐵)) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊))) → ((𝑄𝑃) ∈ 𝐴 ∧ ¬ (𝑄𝑃) 𝑊))
 
Theoremcdlemk13-2N 38011* Part of proof of Lemma K of [Crawley] p. 118. Line 13 on p. 119. 𝑄, 𝐶 are k2, f2. (Contributed by NM, 1-Jul-2013.) (New usage is discouraged.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝑄 = (𝑆𝐶)       (((𝐾 ∈ HL ∧ 𝑊𝐻 ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ (𝐹𝑇𝐶𝑇𝑁𝑇) ∧ ((𝑅𝐶) ≠ (𝑅𝐹) ∧ (𝐹 ≠ ( I ↾ 𝐵) ∧ 𝐶 ≠ ( I ↾ 𝐵)) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊))) → (𝑄𝑃) = ((𝑃 (𝑅𝐶)) ((𝑁𝑃) (𝑅‘(𝐶𝐹)))))
 
Theoremcdlemkole-2N 38012* Utility lemma. (Contributed by NM, 2-Jul-2013.) (New usage is discouraged.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝑄 = (𝑆𝐶)       (((𝐾 ∈ HL ∧ 𝑊𝐻 ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ (𝐹𝑇𝐶𝑇𝑁𝑇) ∧ ((𝑅𝐶) ≠ (𝑅𝐹) ∧ (𝐹 ≠ ( I ↾ 𝐵) ∧ 𝐶 ≠ ( I ↾ 𝐵)) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊))) → (𝑄𝑃) (𝑃 (𝑅𝐶)))
 
Theoremcdlemk14-2N 38013* Part of proof of Lemma K of [Crawley] p. 118. Line 19 on p. 119. 𝑄, 𝐶 are k2, f2. (Contributed by NM, 1-Jul-2013.) (New usage is discouraged.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝑄 = (𝑆𝐶)       (((𝐾 ∈ HL ∧ 𝑊𝐻 ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ (𝐹𝑇𝐶𝑇𝑁𝑇) ∧ ((𝑅𝐶) ≠ (𝑅𝐹) ∧ (𝐹 ≠ ( I ↾ 𝐵) ∧ 𝐶 ≠ ( I ↾ 𝐵)) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊))) → (𝑁𝑃) ((𝑄𝑃) (𝑅‘(𝐹𝐶))))
 
Theoremcdlemk15-2N 38014* Part of proof of Lemma K of [Crawley] p. 118. Line 21 on p. 119. 𝑄, 𝐶 are k2, f2. (Contributed by NM, 1-Jul-2013.) (New usage is discouraged.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝑄 = (𝑆𝐶)       (((𝐾 ∈ HL ∧ 𝑊𝐻 ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ (𝐹𝑇𝐶𝑇𝑁𝑇) ∧ ((𝑅𝐶) ≠ (𝑅𝐹) ∧ (𝐹 ≠ ( I ↾ 𝐵) ∧ 𝐶 ≠ ( I ↾ 𝐵)) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊))) → (𝑁𝑃) ((𝑃 (𝑅𝐹)) ((𝑄𝑃) (𝑅‘(𝐹𝐶)))))
 
Theoremcdlemk16-2N 38015* Part of proof of Lemma K of [Crawley] p. 118. (Contributed by NM, 1-Jul-2013.) (New usage is discouraged.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝑄 = (𝑆𝐶)       (((𝐾 ∈ HL ∧ 𝑊𝐻 ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ (𝐹𝑇𝐶𝑇𝑁𝑇) ∧ ((𝑅𝐶) ≠ (𝑅𝐹) ∧ (𝐹 ≠ ( I ↾ 𝐵) ∧ 𝐶 ≠ ( I ↾ 𝐵)) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊))) → (((𝑃 (𝑅𝐹)) ((𝑄𝑃) (𝑅‘(𝐹𝐶)))) ∈ 𝐴 ∧ ¬ ((𝑃 (𝑅𝐹)) ((𝑄𝑃) (𝑅‘(𝐹𝐶)))) 𝑊))
 
Theoremcdlemk17-2N 38016* Part of proof of Lemma K of [Crawley] p. 118. Line 21 on p. 119. 𝑄, 𝐶 are k2, f2. (Contributed by NM, 1-Jul-2013.) (New usage is discouraged.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝑄 = (𝑆𝐶)       (((𝐾 ∈ HL ∧ 𝑊𝐻 ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ (𝐹𝑇𝐶𝑇𝑁𝑇) ∧ ((𝑅𝐶) ≠ (𝑅𝐹) ∧ (𝐹 ≠ ( I ↾ 𝐵) ∧ 𝐶 ≠ ( I ↾ 𝐵)) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊))) → (𝑁𝑃) = ((𝑃 (𝑅𝐹)) ((𝑄𝑃) (𝑅‘(𝐹𝐶)))))
 
Theoremcdlemkj-2N 38017* Part of proof of Lemma K of [Crawley] p. 118. (Contributed by NM, 2-Jul-2013.) (New usage is discouraged.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝑄 = (𝑆𝐶)    &   𝑌 = (𝑘𝑇 (𝑘𝑃) = ((𝑃 (𝑅𝐺)) ((𝑄𝑃) (𝑅‘(𝐺𝐶)))))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑅𝐹) = (𝑅𝑁) ∧ 𝐺𝑇) ∧ (𝐹𝑇𝐶𝑇𝑁𝑇) ∧ (((𝑅𝐶) ≠ (𝑅𝐹) ∧ (𝑅𝐶) ≠ (𝑅𝐺)) ∧ (𝐹 ≠ ( I ↾ 𝐵) ∧ 𝐺 ≠ ( I ↾ 𝐵) ∧ 𝐶 ≠ ( I ↾ 𝐵)) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊))) → 𝑌𝑇)
 
Theoremcdlemkuv-2N 38018* Part of proof of Lemma K of [Crawley] p. 118. Value of the sigma2 (p) function, given 𝑉. (Contributed by NM, 2-Jul-2013.) (New usage is discouraged.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝑄 = (𝑆𝐶)    &   𝑉 = (𝑑𝑇 ↦ (𝑘𝑇 (𝑘𝑃) = ((𝑃 (𝑅𝑑)) ((𝑄𝑃) (𝑅‘(𝑑𝐶))))))       (𝐺𝑇 → (𝑉𝐺) = (𝑘𝑇 (𝑘𝑃) = ((𝑃 (𝑅𝐺)) ((𝑄𝑃) (𝑅‘(𝐺𝐶))))))
 
Theoremcdlemkuel-2N 38019* Part of proof of Lemma K of [Crawley] p. 118. Conditions for the sigma2 (p) function to be a translation. TODO: combine cdlemkj 37998? (Contributed by NM, 2-Jul-2013.) (New usage is discouraged.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝑄 = (𝑆𝐶)    &   𝑉 = (𝑑𝑇 ↦ (𝑘𝑇 (𝑘𝑃) = ((𝑃 (𝑅𝑑)) ((𝑄𝑃) (𝑅‘(𝑑𝐶))))))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑅𝐹) = (𝑅𝑁) ∧ 𝐺𝑇) ∧ (𝐹𝑇𝐶𝑇𝑁𝑇) ∧ (((𝑅𝐶) ≠ (𝑅𝐹) ∧ (𝑅𝐶) ≠ (𝑅𝐺)) ∧ (𝐹 ≠ ( I ↾ 𝐵) ∧ 𝐺 ≠ ( I ↾ 𝐵) ∧ 𝐶 ≠ ( I ↾ 𝐵)) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊))) → (𝑉𝐺) ∈ 𝑇)
 
Theoremcdlemkuv2-2 38020* Part of proof of Lemma K of [Crawley] p. 118. Line 16 on p. 119 for i = 2, where sigma2 (p) is 𝑉, f2 is 𝐶, and k2 is 𝑄. (Contributed by NM, 2-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝑄 = (𝑆𝐶)    &   𝑉 = (𝑑𝑇 ↦ (𝑘𝑇 (𝑘𝑃) = ((𝑃 (𝑅𝑑)) ((𝑄𝑃) (𝑅‘(𝑑𝐶))))))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑅𝐹) = (𝑅𝑁) ∧ 𝐺𝑇) ∧ (𝐹𝑇𝐶𝑇𝑁𝑇) ∧ (((𝑅𝐶) ≠ (𝑅𝐹) ∧ (𝑅𝐶) ≠ (𝑅𝐺)) ∧ (𝐹 ≠ ( I ↾ 𝐵) ∧ 𝐺 ≠ ( I ↾ 𝐵) ∧ 𝐶 ≠ ( I ↾ 𝐵)) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊))) → ((𝑉𝐺)‘𝑃) = ((𝑃 (𝑅𝐺)) ((𝑄𝑃) (𝑅‘(𝐺𝐶)))))
 
Theoremcdlemk18-2N 38021* Part of proof of Lemma K of [Crawley] p. 118. Line 22 on p. 119. 𝑁, 𝑉, 𝑄, 𝐶 are k, sigma2 (p), k2, f2. (Contributed by NM, 2-Jul-2013.) (New usage is discouraged.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝑄 = (𝑆𝐶)    &   𝑉 = (𝑑𝑇 ↦ (𝑘𝑇 (𝑘𝑃) = ((𝑃 (𝑅𝑑)) ((𝑄𝑃) (𝑅‘(𝑑𝐶))))))       (((𝐾 ∈ HL ∧ 𝑊𝐻 ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ (𝐹𝑇𝐶𝑇𝑁𝑇) ∧ ((𝑅𝐶) ≠ (𝑅𝐹) ∧ (𝐹 ≠ ( I ↾ 𝐵) ∧ 𝐶 ≠ ( I ↾ 𝐵)) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊))) → (𝑁𝑃) = ((𝑉𝐹)‘𝑃))
 
Theoremcdlemk19-2N 38022* Part of proof of Lemma K of [Crawley] p. 118. Line 22 on p. 119. 𝑁, 𝑉, 𝑄, 𝐶 are k, sigma2 (p), k2, f2. (Contributed by NM, 2-Jul-2013.) (New usage is discouraged.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝑄 = (𝑆𝐶)    &   𝑉 = (𝑑𝑇 ↦ (𝑘𝑇 (𝑘𝑃) = ((𝑃 (𝑅𝑑)) ((𝑄𝑃) (𝑅‘(𝑑𝐶))))))       (((𝐾 ∈ HL ∧ 𝑊𝐻 ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ (𝐹𝑇𝐶𝑇𝑁𝑇) ∧ ((𝑅𝐶) ≠ (𝑅𝐹) ∧ (𝐹 ≠ ( I ↾ 𝐵) ∧ 𝐶 ≠ ( I ↾ 𝐵)) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊))) → (𝑉𝐹) = 𝑁)
 
Theoremcdlemk7u-2N 38023* Part of proof of Lemma K of [Crawley] p. 118. Line 5, p. 119 for the sigma2 case. (Contributed by NM, 5-Jul-2013.) (New usage is discouraged.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝑄 = (𝑆𝐶)    &   𝑉 = (𝑑𝑇 ↦ (𝑘𝑇 (𝑘𝑃) = ((𝑃 (𝑅𝑑)) ((𝑄𝑃) (𝑅‘(𝑑𝐶))))))    &   𝑍 = (((𝐺𝑃) (𝑋𝑃)) ((𝑅‘(𝐺𝐶)) (𝑅‘(𝑋𝐶))))       (((𝐾 ∈ HL ∧ 𝑊𝐻 ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ ((𝐹𝑇𝐶𝑇𝑁𝑇) ∧ (𝐺𝑇𝐺 ≠ ( I ↾ 𝐵)) ∧ (𝑋𝑇𝑋 ≠ ( I ↾ 𝐵))) ∧ (((𝑅𝐶) ≠ (𝑅𝐹) ∧ (𝑅𝐺) ≠ (𝑅𝐶) ∧ (𝑅𝑋) ≠ (𝑅𝐶)) ∧ (𝐹 ≠ ( I ↾ 𝐵) ∧ 𝐶 ≠ ( I ↾ 𝐵)) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊))) → ((𝑉𝐺)‘𝑃) (((𝑉𝑋)‘𝑃) 𝑍))
 
Theoremcdlemk11u-2N 38024* Part of proof of Lemma K of [Crawley] p. 118. Line 17, p. 119, showing Eq. 3 (line 8, p. 119) for the sigma2 (𝑍) case. (Contributed by NM, 5-Jul-2013.) (New usage is discouraged.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝑄 = (𝑆𝐶)    &   𝑉 = (𝑑𝑇 ↦ (𝑘𝑇 (𝑘𝑃) = ((𝑃 (𝑅𝑑)) ((𝑄𝑃) (𝑅‘(𝑑𝐶))))))    &   𝑍 = (((𝐺𝑃) (𝑋𝑃)) ((𝑅‘(𝐺𝐶)) (𝑅‘(𝑋𝐶))))       (((𝐾 ∈ HL ∧ 𝑊𝐻 ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ ((𝐹𝑇𝐶𝑇𝑁𝑇) ∧ (𝐺𝑇𝐺 ≠ ( I ↾ 𝐵)) ∧ (𝑋𝑇𝑋 ≠ ( I ↾ 𝐵))) ∧ (((𝑅𝐶) ≠ (𝑅𝐹) ∧ (𝑅𝐺) ≠ (𝑅𝐶) ∧ (𝑅𝑋) ≠ (𝑅𝐶)) ∧ (𝐹 ≠ ( I ↾ 𝐵) ∧ 𝐶 ≠ ( I ↾ 𝐵)) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊))) → ((𝑉𝐺)‘𝑃) (((𝑉𝑋)‘𝑃) (𝑅‘(𝑋𝐺))))
 
Theoremcdlemk12u-2N 38025* Part of proof of Lemma K of [Crawley] p. 118. Line 18, p. 119, showing Eq. 4 (line 10, p. 119) for the sigma2 (𝑉) case. (Contributed by NM, 5-Jul-2013.) (New usage is discouraged.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝑄 = (𝑆𝐶)    &   𝑉 = (𝑑𝑇 ↦ (𝑘𝑇 (𝑘𝑃) = ((𝑃 (𝑅𝑑)) ((𝑄𝑃) (𝑅‘(𝑑𝐶))))))       (((𝐾 ∈ HL ∧ 𝑊𝐻 ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ ((𝐹𝑇𝐶𝑇𝑁𝑇) ∧ (𝐺𝑇𝐺 ≠ ( I ↾ 𝐵)) ∧ (𝑋𝑇𝑋 ≠ ( I ↾ 𝐵))) ∧ (((𝑅𝐶) ≠ (𝑅𝐹) ∧ (𝑅𝐺) ≠ (𝑅𝐶) ∧ (𝑅𝑋) ≠ (𝑅𝐶)) ∧ ((𝑅𝐺) ≠ (𝑅𝑋) ∧ 𝐹 ≠ ( I ↾ 𝐵) ∧ 𝐶 ≠ ( I ↾ 𝐵)) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊))) → ((𝑉𝐺)‘𝑃) = ((𝑃 (𝐺𝑃)) (((𝑉𝑋)‘𝑃) (𝑅‘(𝑋𝐺)))))
 
Theoremcdlemk21-2N 38026* Part of proof of Lemma K of [Crawley] p. 118. Lines 26-27, p. 119 for i=0 and j=2. (Contributed by NM, 5-Jul-2013.) (New usage is discouraged.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝑄 = (𝑆𝐶)    &   𝑉 = (𝑑𝑇 ↦ (𝑘𝑇 (𝑘𝑃) = ((𝑃 (𝑅𝑑)) ((𝑄𝑃) (𝑅‘(𝑑𝐶))))))       (((𝐾 ∈ HL ∧ 𝑊𝐻 ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ ((𝐹𝑇𝐶𝑇𝑁𝑇) ∧ (𝐺𝑇𝐺 ≠ ( I ↾ 𝐵))) ∧ (((𝑅𝐶) ≠ (𝑅𝐹) ∧ (𝑅𝐺) ≠ (𝑅𝐶)) ∧ ((𝑅𝐺) ≠ (𝑅𝐹) ∧ 𝐹 ≠ ( I ↾ 𝐵) ∧ 𝐶 ≠ ( I ↾ 𝐵)) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊))) → ((𝑆𝐺)‘𝑃) = ((𝑉𝐺)‘𝑃))
 
Theoremcdlemk20-2N 38027* Part of proof of Lemma K of [Crawley] p. 118. Line 22, p. 119 for the i=2, j=1 case. Note typo on line 22: f should be fi. Our 𝐷, 𝐶, 𝑂, 𝑄, 𝑈, 𝑉 represent their f1, f2, k1, k2, sigma1, sigma2. (Contributed by NM, 5-Jul-2013.) (New usage is discouraged.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝑄 = (𝑆𝐶)    &   𝑉 = (𝑑𝑇 ↦ (𝑘𝑇 (𝑘𝑃) = ((𝑃 (𝑅𝑑)) ((𝑄𝑃) (𝑅‘(𝑑𝐶))))))    &   𝑂 = (𝑆𝐷)       (((𝐾 ∈ HL ∧ 𝑊𝐻 ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ ((𝐹𝑇𝐶𝑇𝑁𝑇) ∧ (𝐷𝑇𝐷 ≠ ( I ↾ 𝐵)) ∧ (𝐶𝑇𝐶 ≠ ( I ↾ 𝐵))) ∧ (((𝑅𝐶) ≠ (𝑅𝐹) ∧ (𝑅𝐷) ≠ (𝑅𝐹) ∧ (𝑅𝐷) ≠ (𝑅𝐶)) ∧ (𝐹 ≠ ( I ↾ 𝐵) ∧ 𝐶 ≠ ( I ↾ 𝐵)) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊))) → ((𝑉𝐷)‘𝑃) = (𝑂𝑃))
 
Theoremcdlemk22 38028* Part of proof of Lemma K of [Crawley] p. 118. Lines 26-27, p. 119 for i=1 and j=2. (Contributed by NM, 5-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝑄 = (𝑆𝐶)    &   𝑉 = (𝑑𝑇 ↦ (𝑘𝑇 (𝑘𝑃) = ((𝑃 (𝑅𝑑)) ((𝑄𝑃) (𝑅‘(𝑑𝐶))))))    &   𝑂 = (𝑆𝐷)    &   𝑈 = (𝑒𝑇 ↦ (𝑗𝑇 (𝑗𝑃) = ((𝑃 (𝑅𝑒)) ((𝑂𝑃) (𝑅‘(𝑒𝐷))))))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇𝐷𝑇) ∧ ((𝑁𝑇𝐺𝑇𝐶𝑇) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ ((𝐹 ≠ ( I ↾ 𝐵) ∧ 𝐷 ≠ ( I ↾ 𝐵) ∧ 𝐺 ≠ ( I ↾ 𝐵)) ∧ (𝐶 ≠ ( I ↾ 𝐵) ∧ (𝑅𝐺) ≠ (𝑅𝐶) ∧ (𝑅𝐶) ≠ (𝑅𝐹)) ∧ ((𝑅𝐷) ≠ (𝑅𝐹) ∧ (𝑅𝐺) ≠ (𝑅𝐷) ∧ (𝑅𝐶) ≠ (𝑅𝐷)))) → ((𝑈𝐺)‘𝑃) = ((𝑉𝐺)‘𝑃))
 
Theoremcdlemk30 38029* Part of proof of Lemma K of [Crawley] p. 118. TODO: fix comment. Part of attempt to simplify hypotheses. (Contributed by NM, 17-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ (𝐹𝑇𝑏𝑇𝑁𝑇) ∧ ((𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝐹 ≠ ( I ↾ 𝐵) ∧ 𝑏 ≠ ( I ↾ 𝐵)) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊))) → ((𝑆𝑏)‘𝑃) = ((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹)))))
 
Theoremcdlemkuu 38030* Convert between function and operation forms of 𝑌. TODO: Use operation form everywhere. (Contributed by NM, 6-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝑌 = (𝑑𝑇, 𝑒𝑇 ↦ (𝑗𝑇 (𝑗𝑃) = ((𝑃 (𝑅𝑒)) (((𝑆𝑑)‘𝑃) (𝑅‘(𝑒𝑑))))))    &   𝑄 = (𝑆𝐷)    &   𝑍 = (𝑒𝑇 ↦ (𝑗𝑇 (𝑗𝑃) = ((𝑃 (𝑅𝑒)) ((𝑄𝑃) (𝑅‘(𝑒𝐷))))))       ((𝐷𝑇𝐺𝑇) → (𝐷𝑌𝐺) = (𝑍𝐺))
 
Theoremcdlemk31 38031* Part of proof of Lemma K of [Crawley] p. 118. TODO: fix comment. Part of attempt to simplify hypotheses. (Contributed by NM, 17-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝑌 = (𝑑𝑇, 𝑒𝑇 ↦ (𝑗𝑇 (𝑗𝑃) = ((𝑃 (𝑅𝑒)) (((𝑆𝑑)‘𝑃) (𝑅‘(𝑒𝑑))))))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ ((𝐹𝑇𝑏𝑇𝑁𝑇) ∧ 𝐺𝑇) ∧ (((𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝐺)) ∧ (𝐹 ≠ ( I ↾ 𝐵) ∧ 𝑏 ≠ ( I ↾ 𝐵) ∧ 𝐺 ≠ ( I ↾ 𝐵)) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊))) → ((𝑏𝑌𝐺)‘𝑃) = ((𝑃 (𝑅𝐺)) (((𝑆𝑏)‘𝑃) (𝑅‘(𝐺𝑏)))))
 
Theoremcdlemk32 38032* Part of proof of Lemma K of [Crawley] p. 118. TODO: fix comment. Part of attempt to simplify hypotheses. (Contributed by NM, 17-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝑌 = (𝑑𝑇, 𝑒𝑇 ↦ (𝑗𝑇 (𝑗𝑃) = ((𝑃 (𝑅𝑒)) (((𝑆𝑑)‘𝑃) (𝑅‘(𝑒𝑑))))))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ ((𝐹𝑇𝑏𝑇𝑁𝑇) ∧ 𝐺𝑇) ∧ (((𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝐺)) ∧ (𝐹 ≠ ( I ↾ 𝐵) ∧ 𝑏 ≠ ( I ↾ 𝐵) ∧ 𝐺 ≠ ( I ↾ 𝐵)) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊))) → ((𝑏𝑌𝐺)‘𝑃) = ((𝑃 (𝑅𝐺)) (((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹)))) (𝑅‘(𝐺𝑏)))))
 
Theoremcdlemkuel-3 38033* Part of proof of Lemma K of [Crawley] p. 118. Conditions for the sigma2 (p) function to be a translation. TODO: combine cdlemkj 37998? (Contributed by NM, 11-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝑌 = (𝑑𝑇, 𝑒𝑇 ↦ (𝑗𝑇 (𝑗𝑃) = ((𝑃 (𝑅𝑒)) (((𝑆𝑑)‘𝑃) (𝑅‘(𝑒𝑑))))))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑅𝐹) = (𝑅𝑁) ∧ 𝐺𝑇) ∧ (𝐹𝑇𝐷𝑇𝑁𝑇) ∧ (((𝑅𝐷) ≠ (𝑅𝐹) ∧ (𝑅𝐷) ≠ (𝑅𝐺)) ∧ (𝐹 ≠ ( I ↾ 𝐵) ∧ 𝐺 ≠ ( I ↾ 𝐵) ∧ 𝐷 ≠ ( I ↾ 𝐵)) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊))) → (𝐷𝑌𝐺) ∈ 𝑇)
 
Theoremcdlemkuv2-3N 38034* Part of proof of Lemma K of [Crawley] p. 118. Line 16 on p. 119 for i = 1, where sigma2 (p) is 𝑌, f1 is 𝐷, and k1 is 𝑂. (Contributed by NM, 6-Jul-2013.) (New usage is discouraged.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝑌 = (𝑑𝑇, 𝑒𝑇 ↦ (𝑗𝑇 (𝑗𝑃) = ((𝑃 (𝑅𝑒)) (((𝑆𝑑)‘𝑃) (𝑅‘(𝑒𝑑))))))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑅𝐹) = (𝑅𝑁) ∧ 𝐺𝑇) ∧ (𝐹𝑇𝐷𝑇𝑁𝑇) ∧ (((𝑅𝐷) ≠ (𝑅𝐹) ∧ (𝑅𝐷) ≠ (𝑅𝐺)) ∧ (𝐹 ≠ ( I ↾ 𝐵) ∧ 𝐺 ≠ ( I ↾ 𝐵) ∧ 𝐷 ≠ ( I ↾ 𝐵)) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊))) → ((𝐷𝑌𝐺)‘𝑃) = ((𝑃 (𝑅𝐺)) (((𝑆𝐷)‘𝑃) (𝑅‘(𝐺𝐷)))))
 
Theoremcdlemk18-3N 38035* Part of proof of Lemma K of [Crawley] p. 118. Line 22 on p. 119. 𝑁, 𝑌, 𝑂, 𝐷 are k, sigma2 (p), k1, f1. (Contributed by NM, 7-Jul-2013.) (New usage is discouraged.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝑌 = (𝑑𝑇, 𝑒𝑇 ↦ (𝑗𝑇 (𝑗𝑃) = ((𝑃 (𝑅𝑒)) (((𝑆𝑑)‘𝑃) (𝑅‘(𝑒𝑑))))))       (((𝐾 ∈ HL ∧ 𝑊𝐻 ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ (𝐹𝑇𝐷𝑇𝑁𝑇) ∧ ((𝑅𝐷) ≠ (𝑅𝐹) ∧ (𝐹 ≠ ( I ↾ 𝐵) ∧ 𝐷 ≠ ( I ↾ 𝐵)) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊))) → ((𝐷𝑌𝐹)‘𝑃) = (𝑁𝑃))
 
Theoremcdlemk22-3 38036* Part of proof of Lemma K of [Crawley] p. 118. Lines 26-27, p. 119 for i=1 and j=2. (Contributed by NM, 7-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝑌 = (𝑑𝑇, 𝑒𝑇 ↦ (𝑗𝑇 (𝑗𝑃) = ((𝑃 (𝑅𝑒)) (((𝑆𝑑)‘𝑃) (𝑅‘(𝑒𝑑))))))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇𝐷𝑇) ∧ ((𝑁𝑇𝐺𝑇𝐶𝑇) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ ((𝐹 ≠ ( I ↾ 𝐵) ∧ 𝐷 ≠ ( I ↾ 𝐵) ∧ 𝐺 ≠ ( I ↾ 𝐵)) ∧ (𝐶 ≠ ( I ↾ 𝐵) ∧ (𝑅𝐺) ≠ (𝑅𝐶) ∧ (𝑅𝐶) ≠ (𝑅𝐹)) ∧ ((𝑅𝐷) ≠ (𝑅𝐹) ∧ (𝑅𝐺) ≠ (𝑅𝐷) ∧ (𝑅𝐶) ≠ (𝑅𝐷)))) → ((𝐷𝑌𝐺)‘𝑃) = ((𝐶𝑌𝐺)‘𝑃))
 
Theoremcdlemk23-3 38037* Part of proof of Lemma K of [Crawley] p. 118. Eliminate the (𝑅𝐶) ≠ (𝑅𝐷) requirement from cdlemk22-3 38036. (Contributed by NM, 7-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝑌 = (𝑑𝑇, 𝑒𝑇 ↦ (𝑗𝑇 (𝑗𝑃) = ((𝑃 (𝑅𝑒)) (((𝑆𝑑)‘𝑃) (𝑅‘(𝑒𝑑))))))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝐹𝑇𝐷𝑇𝑁𝑇) ∧ (𝐺𝑇𝐶𝑇𝑥𝑇)) ∧ ((𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ ((𝑅𝐹) = (𝑅𝑁) ∧ 𝐹 ≠ ( I ↾ 𝐵) ∧ 𝐷 ≠ ( I ↾ 𝐵)) ∧ (𝐺 ≠ ( I ↾ 𝐵) ∧ 𝐶 ≠ ( I ↾ 𝐵) ∧ 𝑥 ≠ ( I ↾ 𝐵))) ∧ (((𝑅𝐺) ≠ (𝑅𝐶) ∧ (𝑅𝐶) ≠ (𝑅𝐹) ∧ (𝑅𝐷) ≠ (𝑅𝐹)) ∧ ((𝑅𝐺) ≠ (𝑅𝐷) ∧ (𝑅𝑥) ≠ (𝑅𝐶)) ∧ ((𝑅𝑥) ≠ (𝑅𝐷) ∧ (𝑅𝑥) ≠ (𝑅𝐹) ∧ (𝑅𝐺) ≠ (𝑅𝑥)))) → ((𝐷𝑌𝐺)‘𝑃) = ((𝐶𝑌𝐺)‘𝑃))
 
Theoremcdlemk24-3 38038* Part of proof of Lemma K of [Crawley] p. 118. Eliminate the (𝑅𝑥) ≠ (𝑅𝐶) requirement from cdlemk23-3 38037 using (𝑅𝐶) = (𝑅𝐷). (Contributed by NM, 7-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝑌 = (𝑑𝑇, 𝑒𝑇 ↦ (𝑗𝑇 (𝑗𝑃) = ((𝑃 (𝑅𝑒)) (((𝑆𝑑)‘𝑃) (𝑅‘(𝑒𝑑))))))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝐹𝑇𝐷𝑇𝑁𝑇) ∧ (𝐺𝑇𝐶𝑇𝑥𝑇)) ∧ ((𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ ((𝑅𝐹) = (𝑅𝑁) ∧ 𝐹 ≠ ( I ↾ 𝐵) ∧ 𝐷 ≠ ( I ↾ 𝐵)) ∧ (𝐺 ≠ ( I ↾ 𝐵) ∧ 𝐶 ≠ ( I ↾ 𝐵) ∧ 𝑥 ≠ ( I ↾ 𝐵))) ∧ (((𝑅𝐺) ≠ (𝑅𝐶) ∧ (𝑅𝐶) ≠ (𝑅𝐹) ∧ (𝑅𝐷) ≠ (𝑅𝐹)) ∧ ((𝑅𝐺) ≠ (𝑅𝐷) ∧ (𝑅𝐶) = (𝑅𝐷)) ∧ ((𝑅𝑥) ≠ (𝑅𝐷) ∧ (𝑅𝑥) ≠ (𝑅𝐹) ∧ (𝑅𝐺) ≠ (𝑅𝑥)))) → ((𝐷𝑌𝐺)‘𝑃) = ((𝐶𝑌𝐺)‘𝑃))
 
Theoremcdlemk25-3 38039* Part of proof of Lemma K of [Crawley] p. 118. Eliminate the (𝑅𝐶) = (𝑅𝐷) requirement from cdlemk24-3 38038. (Contributed by NM, 7-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝑌 = (𝑑𝑇, 𝑒𝑇 ↦ (𝑗𝑇 (𝑗𝑃) = ((𝑃 (𝑅𝑒)) (((𝑆𝑑)‘𝑃) (𝑅‘(𝑒𝑑))))))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝐹𝑇𝐷𝑇𝑁𝑇) ∧ (𝐺𝑇𝐶𝑇𝑥𝑇)) ∧ ((𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ ((𝑅𝐹) = (𝑅𝑁) ∧ 𝐹 ≠ ( I ↾ 𝐵) ∧ 𝐷 ≠ ( I ↾ 𝐵)) ∧ (𝐺 ≠ ( I ↾ 𝐵) ∧ 𝐶 ≠ ( I ↾ 𝐵) ∧ 𝑥 ≠ ( I ↾ 𝐵))) ∧ (((𝑅𝐺) ≠ (𝑅𝐶) ∧ (𝑅𝐶) ≠ (𝑅𝐹) ∧ (𝑅𝐷) ≠ (𝑅𝐹)) ∧ (𝑅𝐺) ≠ (𝑅𝐷) ∧ ((𝑅𝑥) ≠ (𝑅𝐷) ∧ (𝑅𝑥) ≠ (𝑅𝐹) ∧ (𝑅𝐺) ≠ (𝑅𝑥)))) → ((𝐷𝑌𝐺)‘𝑃) = ((𝐶𝑌𝐺)‘𝑃))
 
Theoremcdlemk26b-3 38040* Part of proof of Lemma K of [Crawley] p. 118. (Contributed by NM, 14-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝑌 = (𝑑𝑇, 𝑒𝑇 ↦ (𝑗𝑇 (𝑗𝑃) = ((𝑃 (𝑅𝑒)) (((𝑆𝑑)‘𝑃) (𝑅‘(𝑒𝑑))))))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝐹𝑇𝐹 ≠ ( I ↾ 𝐵) ∧ 𝑁𝑇) ∧ (𝐺𝑇𝐺 ≠ ( I ↾ 𝐵) ∧ (𝑅𝐹) = (𝑅𝑁))) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊)) → ∃𝑥𝑇 ((𝑥 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑥) ≠ (𝑅𝐹) ∧ (𝑅𝑥) ≠ (𝑅𝐺)) ∧ (𝑥𝑌𝐺) ∈ 𝑇))
 
Theoremcdlemk26-3 38041* Part of proof of Lemma K of [Crawley] p. 118. Eliminate the 𝑥 requirements from cdlemk25-3 38039. (Contributed by NM, 10-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝑌 = (𝑑𝑇, 𝑒𝑇 ↦ (𝑗𝑇 (𝑗𝑃) = ((𝑃 (𝑅𝑒)) (((𝑆𝑑)‘𝑃) (𝑅‘(𝑒𝑑))))))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝐹𝑇𝐷𝑇𝑁𝑇) ∧ (𝐺𝑇𝐶𝑇)) ∧ ((𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ ((𝑅𝐹) = (𝑅𝑁) ∧ 𝐹 ≠ ( I ↾ 𝐵) ∧ 𝐷 ≠ ( I ↾ 𝐵)) ∧ (𝐺 ≠ ( I ↾ 𝐵) ∧ 𝐶 ≠ ( I ↾ 𝐵))) ∧ (((𝑅𝐺) ≠ (𝑅𝐶) ∧ (𝑅𝐶) ≠ (𝑅𝐹) ∧ (𝑅𝐷) ≠ (𝑅𝐹)) ∧ (𝑅𝐺) ≠ (𝑅𝐷))) → ((𝐷𝑌𝐺)‘𝑃) = ((𝐶𝑌𝐺)‘𝑃))
 
Theoremcdlemk27-3 38042* Part of proof of Lemma K of [Crawley] p. 118. Eliminate the 𝑃 from the conclusion of cdlemk25-3 38039. (Contributed by NM, 10-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝑌 = (𝑑𝑇, 𝑒𝑇 ↦ (𝑗𝑇 (𝑗𝑃) = ((𝑃 (𝑅𝑒)) (((𝑆𝑑)‘𝑃) (𝑅‘(𝑒𝑑))))))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝐹𝑇𝐷𝑇𝑁𝑇) ∧ (𝐺𝑇𝐶𝑇)) ∧ ((𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ ((𝑅𝐹) = (𝑅𝑁) ∧ 𝐹 ≠ ( I ↾ 𝐵) ∧ 𝐷 ≠ ( I ↾ 𝐵)) ∧ (𝐺 ≠ ( I ↾ 𝐵) ∧ 𝐶 ≠ ( I ↾ 𝐵))) ∧ (((𝑅𝐺) ≠ (𝑅𝐶) ∧ (𝑅𝐶) ≠ (𝑅𝐹) ∧ (𝑅𝐷) ≠ (𝑅𝐹)) ∧ (𝑅𝐺) ≠ (𝑅𝐷))) → (𝐷𝑌𝐺) = (𝐶𝑌𝐺))
 
Theoremcdlemk28-3 38043* Part of proof of Lemma K of [Crawley] p. 118. (Contributed by NM, 14-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝑌 = (𝑑𝑇, 𝑒𝑇 ↦ (𝑗𝑇 (𝑗𝑃) = ((𝑃 (𝑅𝑒)) (((𝑆𝑑)‘𝑃) (𝑅‘(𝑒𝑑))))))       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ ((𝐹𝑇𝐹 ≠ ( I ↾ 𝐵)) ∧ (𝐺𝑇𝐺 ≠ ( I ↾ 𝐵)) ∧ 𝑁𝑇) ∧ ((𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑅𝐹) = (𝑅𝑁))) → ∃𝑧𝑇𝑏𝑇 ((𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝐺)) → 𝑧 = (𝑏𝑌𝐺)))
 
Theoremcdlemk33N 38044* Part of proof of Lemma K of [Crawley] p. 118. TODO: fix comment. Part of attempt to simplify hypotheses. TODO: not needed, is embodied in cdlemk34 38045. (Contributed by NM, 18-Jul-2013.) (New usage is discouraged.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝑌 = (𝑑𝑇, 𝑒𝑇 ↦ (𝑗𝑇 (𝑗𝑃) = ((𝑃 (𝑅𝑒)) (((𝑆𝑑)‘𝑃) (𝑅‘(𝑒𝑑))))))    &   𝑋 = (𝑧𝑇𝑏𝑇 ((𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝐺)) → 𝑧 = (𝑏𝑌𝐺)))       (((𝐾 ∈ HL ∧ 𝑊𝐻 ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ ((𝐹𝑇𝐹 ≠ ( I ↾ 𝐵) ∧ 𝑁𝑇) ∧ (𝐺𝑇𝐺 ≠ ( I ↾ 𝐵)) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊))) → 𝑋 = (𝑧𝑇𝑏𝑇 ((𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝐺)) → (𝑧𝑃) = ((𝑏𝑌𝐺)‘𝑃))))
 
Theoremcdlemk34 38045* Part of proof of Lemma K of [Crawley] p. 118. TODO: fix comment. Part of attempt to simplify hypotheses. (Contributed by NM, 18-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝑌 = (𝑑𝑇, 𝑒𝑇 ↦ (𝑗𝑇 (𝑗𝑃) = ((𝑃 (𝑅𝑒)) (((𝑆𝑑)‘𝑃) (𝑅‘(𝑒𝑑))))))    &   𝑋 = (𝑧𝑇𝑏𝑇 ((𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝐺)) → 𝑧 = (𝑏𝑌𝐺)))       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ ((𝐹𝑇𝐹 ≠ ( I ↾ 𝐵)) ∧ (𝐺𝑇𝐺 ≠ ( I ↾ 𝐵)) ∧ 𝑁𝑇) ∧ ((𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑅𝐹) = (𝑅𝑁))) → 𝑋 = (𝑧𝑇𝑏𝑇 ((𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝐺)) → (𝑧𝑃) = ((𝑃 (𝑅𝐺)) (((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹)))) (𝑅‘(𝐺𝑏)))))))
 
Theoremcdlemk29-3 38046* Part of proof of Lemma K of [Crawley] p. 118. TODO: fix comment. (Contributed by NM, 14-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝑌 = (𝑑𝑇, 𝑒𝑇 ↦ (𝑗𝑇 (𝑗𝑃) = ((𝑃 (𝑅𝑒)) (((𝑆𝑑)‘𝑃) (𝑅‘(𝑒𝑑))))))    &   𝑋 = (𝑧𝑇𝑏𝑇 ((𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝐺)) → 𝑧 = (𝑏𝑌𝐺)))       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ ((𝐹𝑇𝐹 ≠ ( I ↾ 𝐵)) ∧ (𝐺𝑇𝐺 ≠ ( I ↾ 𝐵)) ∧ 𝑁𝑇) ∧ ((𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑅𝐹) = (𝑅𝑁))) → 𝑋𝑇)
 
Theoremcdlemk35 38047* Part of proof of Lemma K of [Crawley] p. 118. cdlemk29-3 38046 with shorter hypotheses. (Contributed by NM, 18-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑍 = ((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹))))    &   𝑌 = ((𝑃 (𝑅𝐺)) (𝑍 (𝑅‘(𝐺𝑏))))    &   𝑋 = (𝑧𝑇𝑏𝑇 ((𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝐺)) → (𝑧𝑃) = 𝑌))       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ ((𝐹𝑇𝐹 ≠ ( I ↾ 𝐵)) ∧ (𝐺𝑇𝐺 ≠ ( I ↾ 𝐵)) ∧ 𝑁𝑇) ∧ ((𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑅𝐹) = (𝑅𝑁))) → 𝑋𝑇)
 
Theoremcdlemk36 38048* Part of proof of Lemma K of [Crawley] p. 118. TODO: fix comment. (Contributed by NM, 18-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑍 = ((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹))))    &   𝑌 = ((𝑃 (𝑅𝐺)) (𝑍 (𝑅‘(𝐺𝑏))))    &   𝑋 = (𝑧𝑇𝑏𝑇 ((𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝐺)) → (𝑧𝑃) = 𝑌))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝐹𝑇𝐹 ≠ ( I ↾ 𝐵)) ∧ (𝐺𝑇𝐺 ≠ ( I ↾ 𝐵))) ∧ (𝑁𝑇 ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ (𝑏𝑇 ∧ (𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝐺)))) → (𝑋𝑃) = 𝑌)
 
Theoremcdlemk37 38049* Part of proof of Lemma K of [Crawley] p. 118. TODO: fix comment. (Contributed by NM, 18-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑍 = ((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹))))    &   𝑌 = ((𝑃 (𝑅𝐺)) (𝑍 (𝑅‘(𝐺𝑏))))    &   𝑋 = (𝑧𝑇𝑏𝑇 ((𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝐺)) → (𝑧𝑃) = 𝑌))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝐹𝑇𝐹 ≠ ( I ↾ 𝐵)) ∧ (𝐺𝑇𝐺 ≠ ( I ↾ 𝐵))) ∧ (𝑁𝑇 ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ (𝑏𝑇 ∧ (𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝐺)))) → (𝑋𝑃) (𝑃 (𝑅𝐺)))
 
Theoremcdlemk38 38050* Part of proof of Lemma K of [Crawley] p. 118. Line 31, p. 119. TODO: derive more directly with r19.23 3314? (Contributed by NM, 19-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑍 = ((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹))))    &   𝑌 = ((𝑃 (𝑅𝐺)) (𝑍 (𝑅‘(𝐺𝑏))))    &   𝑋 = (𝑧𝑇𝑏𝑇 ((𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝐺)) → (𝑧𝑃) = 𝑌))       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ ((𝐹𝑇𝐹 ≠ ( I ↾ 𝐵)) ∧ (𝐺𝑇𝐺 ≠ ( I ↾ 𝐵)) ∧ 𝑁𝑇) ∧ ((𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑅𝐹) = (𝑅𝑁))) → (𝑋𝑃) (𝑃 (𝑅𝐺)))
 
Theoremcdlemk39 38051* Part of proof of Lemma K of [Crawley] p. 118. Line 31, p. 119. Trace-preserving property of tau, represented by 𝑋. (Contributed by NM, 19-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑍 = ((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹))))    &   𝑌 = ((𝑃 (𝑅𝐺)) (𝑍 (𝑅‘(𝐺𝑏))))    &   𝑋 = (𝑧𝑇𝑏𝑇 ((𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝐺)) → (𝑧𝑃) = 𝑌))       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ ((𝐹𝑇𝐹 ≠ ( I ↾ 𝐵)) ∧ (𝐺𝑇𝐺 ≠ ( I ↾ 𝐵)) ∧ 𝑁𝑇) ∧ ((𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑅𝐹) = (𝑅𝑁))) → (𝑅𝑋) (𝑅𝐺))
 
Theoremcdlemk40 38052* TODO: fix comment. (Contributed by NM, 31-Jul-2013.)
𝑋 = (𝑧𝑇 𝜑)    &   𝑈 = (𝑔𝑇 ↦ if(𝐹 = 𝑁, 𝑔, 𝑋))       (𝐺𝑇 → (𝑈𝐺) = if(𝐹 = 𝑁, 𝐺, 𝐺 / 𝑔𝑋))
 
Theoremcdlemk40t 38053* TODO: fix comment. (Contributed by NM, 31-Jul-2013.)
𝑋 = (𝑧𝑇 𝜑)    &   𝑈 = (𝑔𝑇 ↦ if(𝐹 = 𝑁, 𝑔, 𝑋))       ((𝐹 = 𝑁𝐺𝑇) → (𝑈𝐺) = 𝐺)
 
Theoremcdlemk40f 38054* TODO: fix comment. (Contributed by NM, 31-Jul-2013.)
𝑋 = (𝑧𝑇 𝜑)    &   𝑈 = (𝑔𝑇 ↦ if(𝐹 = 𝑁, 𝑔, 𝑋))       ((𝐹𝑁𝐺𝑇) → (𝑈𝐺) = 𝐺 / 𝑔𝑋)
 
Theoremcdlemk41 38055* Part of proof of Lemma K of [Crawley] p. 118. TODO: fix comment. (Contributed by NM, 19-Jul-2013.)
𝑌 = ((𝑃 (𝑅𝑔)) (𝑍 (𝑅‘(𝑔𝑏))))       (𝐺𝑇𝐺 / 𝑔𝑌 = ((𝑃 (𝑅𝐺)) (𝑍 (𝑅‘(𝐺𝑏)))))
 
Theoremcdlemkfid1N 38056 Lemma for cdlemkfid3N 38060. (Contributed by NM, 29-Jul-2013.) (New usage is discouraged.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝐹𝑇𝐹 ≠ ( I ↾ 𝐵) ∧ 𝐺𝑇) ∧ ((𝑅𝐺) ≠ (𝑅𝐹) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊))) → ((𝑃 (𝑅𝐺)) ((𝐹𝑃) (𝑅‘(𝐺𝐹)))) = (𝐺𝑃))
 
Theoremcdlemkid1 38057 Lemma for cdlemkid 38071. (Contributed by NM, 24-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑍 = ((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹))))       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝐹𝑇𝑁𝑇 ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ ((𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑏𝑇𝑏 ≠ ( I ↾ 𝐵)))) → (𝑍 (𝑅𝑏)) = (𝑃 (𝑅𝑏)))
 
Theoremcdlemkfid2N 38058 Lemma for cdlemkfid3N 38060. (Contributed by NM, 29-Jul-2013.) (New usage is discouraged.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑍 = ((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹))))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹 = 𝑁) ∧ (𝐹𝑇𝐹 ≠ ( I ↾ 𝐵) ∧ 𝑏𝑇) ∧ ((𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊))) → 𝑍 = (𝑏𝑃))
 
Theoremcdlemkid2 38059* Lemma for cdlemkid 38071. (Contributed by NM, 24-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑍 = ((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹))))    &   𝑌 = ((𝑃 (𝑅𝑔)) (𝑍 (𝑅‘(𝑔𝑏))))       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝐹𝑇𝑁𝑇 ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ ((𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ 𝐺 = ( I ↾ 𝐵) ∧ (𝑏𝑇𝑏 ≠ ( I ↾ 𝐵)))) → 𝐺 / 𝑔𝑌 = 𝑃)
 
Theoremcdlemkfid3N 38060* TODO: is this useful or should it be deleted? (Contributed by NM, 29-Jul-2013.) (New usage is discouraged.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑍 = ((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹))))    &   𝑌 = ((𝑃 (𝑅𝑔)) (𝑍 (𝑅‘(𝑔𝑏))))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹 = 𝑁) ∧ ((𝐹𝑇𝐹 ≠ ( I ↾ 𝐵)) ∧ 𝐺𝑇 ∧ (𝑏𝑇𝑏 ≠ ( I ↾ 𝐵))) ∧ ((𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝐺) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊))) → 𝐺 / 𝑔𝑌 = (𝐺𝑃))
 
Theoremcdlemky 38061* Part of proof of Lemma K of [Crawley] p. 118. TODO: clean up (𝑏𝑌𝐺) stuff. 𝑉 represents 𝑌 in cdlemk31 38031. (Contributed by NM, 21-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑍 = ((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹))))    &   𝑌 = ((𝑃 (𝑅𝑔)) (𝑍 (𝑅‘(𝑔𝑏))))    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝑉 = (𝑑𝑇, 𝑒𝑇 ↦ (𝑗𝑇 (𝑗𝑃) = ((𝑃 (𝑅𝑒)) (((𝑆𝑑)‘𝑃) (𝑅‘(𝑒𝑑))))))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝐹𝑇𝐹 ≠ ( I ↾ 𝐵)) ∧ (𝐺𝑇𝐺 ≠ ( I ↾ 𝐵))) ∧ (𝑁𝑇 ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ (𝑏𝑇 ∧ (𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝐺)))) → 𝐺 / 𝑔𝑌 = ((𝑏𝑉𝐺)‘𝑃))
 
Theoremcdlemkyu 38062* Convert between function and explicit forms. 𝐶 represents 𝑍 in cdlemkuu 38030. TODO: Clean all this up. (Contributed by NM, 21-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑍 = ((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹))))    &   𝑌 = ((𝑃 (𝑅𝑔)) (𝑍 (𝑅‘(𝑔𝑏))))    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝑉 = (𝑑𝑇, 𝑒𝑇 ↦ (𝑗𝑇 (𝑗𝑃) = ((𝑃 (𝑅𝑒)) (((𝑆𝑑)‘𝑃) (𝑅‘(𝑒𝑑))))))    &   𝑄 = (𝑆𝑏)    &   𝐶 = (𝑒𝑇 ↦ (𝑗𝑇 (𝑗𝑃) = ((𝑃 (𝑅𝑒)) ((𝑄𝑃) (𝑅‘(𝑒𝑏))))))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝐹𝑇𝐹 ≠ ( I ↾ 𝐵)) ∧ (𝐺𝑇𝐺 ≠ ( I ↾ 𝐵))) ∧ (𝑁𝑇 ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ (𝑏𝑇 ∧ (𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝐺)))) → 𝐺 / 𝑔𝑌 = ((𝐶𝐺)‘𝑃))
 
Theoremcdlemkyuu 38063* cdlemkyu 38062 with some hypotheses eliminated. TODO: Clean all this up. (Contributed by NM, 21-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑍 = ((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹))))    &   𝑌 = ((𝑃 (𝑅𝑔)) (𝑍 (𝑅‘(𝑔𝑏))))    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝐶 = (𝑒𝑇 ↦ (𝑗𝑇 (𝑗𝑃) = ((𝑃 (𝑅𝑒)) (((𝑆𝑏)‘𝑃) (𝑅‘(𝑒𝑏))))))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝐹𝑇𝐹 ≠ ( I ↾ 𝐵)) ∧ (𝐺𝑇𝐺 ≠ ( I ↾ 𝐵))) ∧ (𝑁𝑇 ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ (𝑏𝑇 ∧ (𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝐺)))) → 𝐺 / 𝑔𝑌 = ((𝐶𝐺)‘𝑃))
 
Theoremcdlemk11ta 38064* Part of proof of Lemma K of [Crawley] p. 118. Lemma for Eq. 5, p. 119. 𝐺, 𝐼 stand for g, h. TODO: fix comment. (Contributed by NM, 21-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑍 = ((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹))))    &   𝑌 = ((𝑃 (𝑅𝑔)) (𝑍 (𝑅‘(𝑔𝑏))))    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝐶 = (𝑒𝑇 ↦ (𝑗𝑇 (𝑗𝑃) = ((𝑃 (𝑅𝑒)) (((𝑆𝑏)‘𝑃) (𝑅‘(𝑒𝑏))))))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝐹𝑇𝐹 ≠ ( I ↾ 𝐵)) ∧ (𝐺𝑇𝐺 ≠ ( I ↾ 𝐵))) ∧ (𝑁𝑇 ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ (𝑏𝑇 ∧ (𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝐺)) ∧ (𝐼𝑇𝐼 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐼)))) → 𝐺 / 𝑔𝑌 (𝐼 / 𝑔𝑌 (𝑅‘(𝐼𝐺))))
 
Theoremcdlemk19ylem 38065* Lemma for cdlemk19y 38067. (Contributed by NM, 30-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑍 = ((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹))))    &   𝑌 = ((𝑃 (𝑅𝑔)) (𝑍 (𝑅‘(𝑔𝑏))))    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝐶 = (𝑒𝑇 ↦ (𝑗𝑇 (𝑗𝑃) = ((𝑃 (𝑅𝑒)) (((𝑆𝑏)‘𝑃) (𝑅‘(𝑒𝑏))))))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝐹𝑇𝐹 ≠ ( I ↾ 𝐵))) ∧ (𝑁𝑇 ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ (𝑏𝑇 ∧ (𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹)))) → 𝐹 / 𝑔𝑌 = (𝑁𝑃))
 
Theoremcdlemk11tb 38066* Part of proof of Lemma K of [Crawley] p. 118. Lemma for Eq. 5, p. 119. 𝐺, 𝐼 stand for g, h. cdlemk11ta 38064 with hypotheses removed. TODO: Can this be proved directly with no quantification? (Contributed by NM, 21-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑍 = ((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹))))    &   𝑌 = ((𝑃 (𝑅𝑔)) (𝑍 (𝑅‘(𝑔𝑏))))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝐹𝑇𝐹 ≠ ( I ↾ 𝐵)) ∧ (𝐺𝑇𝐺 ≠ ( I ↾ 𝐵))) ∧ (𝑁𝑇 ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ (𝑏𝑇 ∧ (𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝐺)) ∧ (𝐼𝑇𝐼 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐼)))) → 𝐺 / 𝑔𝑌 (𝐼 / 𝑔𝑌 (𝑅‘(𝐼𝐺))))
 
Theoremcdlemk19y 38067* cdlemk19 38004 with simpler hypotheses. TODO: Clean all this up. (Contributed by NM, 30-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑍 = ((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹))))    &   𝑌 = ((𝑃 (𝑅𝑔)) (𝑍 (𝑅‘(𝑔𝑏))))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝐹𝑇𝐹 ≠ ( I ↾ 𝐵))) ∧ (𝑁𝑇 ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ (𝑏𝑇 ∧ (𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹)))) → 𝐹 / 𝑔𝑌 = (𝑁𝑃))
 
Theoremcdlemkid3N 38068* Lemma for cdlemkid 38071. (Contributed by NM, 25-Jul-2013.) (New usage is discouraged.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑍 = ((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹))))    &   𝑌 = ((𝑃 (𝑅𝑔)) (𝑍 (𝑅‘(𝑔𝑏))))    &   𝑋 = (𝑧𝑇𝑏𝑇 ((𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝑔)) → (𝑧𝑃) = 𝑌))       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝐹𝑇𝑁𝑇 ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ ((𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ 𝐺 = ( I ↾ 𝐵))) → 𝐺 / 𝑔𝑋 = (𝑧𝑇𝑏𝑇 ((𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝐺)) → (𝑧𝑃) = 𝑃)))
 
Theoremcdlemkid4 38069* Lemma for cdlemkid 38071. (Contributed by NM, 25-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑍 = ((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹))))    &   𝑌 = ((𝑃 (𝑅𝑔)) (𝑍 (𝑅‘(𝑔𝑏))))    &   𝑋 = (𝑧𝑇𝑏𝑇 ((𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝑔)) → (𝑧𝑃) = 𝑌))       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝐹𝑇𝑁𝑇 ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ ((𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ 𝐺 = ( I ↾ 𝐵))) → 𝐺 / 𝑔𝑋 = (𝑧𝑇𝑏𝑇 ((𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝐺)) → 𝑧 = ( I ↾ 𝐵))))
 
Theoremcdlemkid5 38070* Lemma for cdlemkid 38071. (Contributed by NM, 25-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑍 = ((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹))))    &   𝑌 = ((𝑃 (𝑅𝑔)) (𝑍 (𝑅‘(𝑔𝑏))))    &   𝑋 = (𝑧𝑇𝑏𝑇 ((𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝑔)) → (𝑧𝑃) = 𝑌))       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝐹𝑇𝑁𝑇 ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ ((𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ 𝐺 = ( I ↾ 𝐵))) → 𝐺 / 𝑔𝑋𝑇)
 
Theoremcdlemkid 38071* The value of the tau function (in Lemma K of [Crawley] p. 118) on the identity relation. (Contributed by NM, 25-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑍 = ((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹))))    &   𝑌 = ((𝑃 (𝑅𝑔)) (𝑍 (𝑅‘(𝑔𝑏))))    &   𝑋 = (𝑧𝑇𝑏𝑇 ((𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝑔)) → (𝑧𝑃) = 𝑌))       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝐹𝑇𝑁𝑇 ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ ((𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ 𝐺 = ( I ↾ 𝐵))) → 𝐺 / 𝑔𝑋 = ( I ↾ 𝐵))
 
Theoremcdlemk35s 38072* Substitution version of cdlemk35 38047. (Contributed by NM, 22-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑍 = ((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹))))    &   𝑌 = ((𝑃 (𝑅𝑔)) (𝑍 (𝑅‘(𝑔𝑏))))    &   𝑋 = (𝑧𝑇𝑏𝑇 ((𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝑔)) → (𝑧𝑃) = 𝑌))       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ ((𝐹𝑇𝐹 ≠ ( I ↾ 𝐵)) ∧ (𝐺𝑇𝐺 ≠ ( I ↾ 𝐵)) ∧ 𝑁𝑇) ∧ ((𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑅𝐹) = (𝑅𝑁))) → 𝐺 / 𝑔𝑋𝑇)
 
Theoremcdlemk35s-id 38073* Substitution version of cdlemk35 38047. (Contributed by NM, 26-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑍 = ((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹))))    &   𝑌 = ((𝑃 (𝑅𝑔)) (𝑍 (𝑅‘(𝑔𝑏))))    &   𝑋 = (𝑧𝑇𝑏𝑇 ((𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝑔)) → (𝑧𝑃) = 𝑌))       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ ((𝐹𝑇𝐹 ≠ ( I ↾ 𝐵)) ∧ 𝐺𝑇𝑁𝑇) ∧ ((𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑅𝐹) = (𝑅𝑁))) → 𝐺 / 𝑔𝑋𝑇)
 
Theoremcdlemk39s 38074* Substitution version of cdlemk39 38051. TODO: Can any commonality with cdlemk35s 38072 be exploited? (Contributed by NM, 23-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑍 = ((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹))))    &   𝑌 = ((𝑃 (𝑅𝑔)) (𝑍 (𝑅‘(𝑔𝑏))))    &   𝑋 = (𝑧𝑇𝑏𝑇 ((𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝑔)) → (𝑧𝑃) = 𝑌))       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ ((𝐹𝑇𝐹 ≠ ( I ↾ 𝐵)) ∧ (𝐺𝑇𝐺 ≠ ( I ↾ 𝐵)) ∧ 𝑁𝑇) ∧ ((𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑅𝐹) = (𝑅𝑁))) → (𝑅𝐺 / 𝑔𝑋) (𝑅𝐺))
 
Theoremcdlemk39s-id 38075* Substitution version of cdlemk39 38051 with non-identity requirement on 𝐺 removed. TODO: Can any commonality with cdlemk35s 38072 be exploited? (Contributed by NM, 26-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑍 = ((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹))))    &   𝑌 = ((𝑃 (𝑅𝑔)) (𝑍 (𝑅‘(𝑔𝑏))))    &   𝑋 = (𝑧𝑇𝑏𝑇 ((𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝑔)) → (𝑧𝑃) = 𝑌))       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ ((𝐹𝑇𝐹 ≠ ( I ↾ 𝐵)) ∧ 𝐺𝑇𝑁𝑇) ∧ ((𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑅𝐹) = (𝑅𝑁))) → (𝑅𝐺 / 𝑔𝑋) (𝑅𝐺))
 
Theoremcdlemk42 38076* Part of proof of Lemma K of [Crawley] p. 118. TODO: fix comment. (Contributed by NM, 20-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑍 = ((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹))))    &   𝑌 = ((𝑃 (𝑅𝑔)) (𝑍 (𝑅‘(𝑔𝑏))))    &   𝑋 = (𝑧𝑇𝑏𝑇 ((𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝑔)) → (𝑧𝑃) = 𝑌))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝐹𝑇𝐹 ≠ ( I ↾ 𝐵)) ∧ (𝐺𝑇𝐺 ≠ ( I ↾ 𝐵))) ∧ (𝑁𝑇 ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ (𝑏𝑇 ∧ (𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝐺)))) → (𝐺 / 𝑔𝑋𝑃) = 𝐺 / 𝑔𝑌)
 
Theoremcdlemk19xlem 38077* Lemma for cdlemk19x 38078. (Contributed by NM, 30-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑍 = ((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹))))    &   𝑌 = ((𝑃 (𝑅𝑔)) (𝑍 (𝑅‘(𝑔𝑏))))    &   𝑋 = (𝑧𝑇𝑏𝑇 ((𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝑔)) → (𝑧𝑃) = 𝑌))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ ((𝐹𝑇𝐹 ≠ ( I ↾ 𝐵) ∧ 𝑁𝑇) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊)) ∧ (𝑏𝑇 ∧ (𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹)))) → (𝐹 / 𝑔𝑋𝑃) = (𝑁𝑃))
 
Theoremcdlemk19x 38078* cdlemk19 38004 with simpler hypotheses. TODO: Clean all this up. (Contributed by NM, 30-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑍 = ((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹))))    &   𝑌 = ((𝑃 (𝑅𝑔)) (𝑍 (𝑅‘(𝑔𝑏))))    &   𝑋 = (𝑧𝑇𝑏𝑇 ((𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝑔)) → (𝑧𝑃) = 𝑌))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ (𝐹𝑇𝐹 ≠ ( I ↾ 𝐵) ∧ 𝑁𝑇) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊)) → (𝐹 / 𝑔𝑋𝑃) = (𝑁𝑃))
 
Theoremcdlemk42yN 38079* Part of proof of Lemma K of [Crawley] p. 118. TODO: fix comment. (Contributed by NM, 20-Jul-2013.) (New usage is discouraged.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑍 = ((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹))))    &   𝑌 = ((𝑃 (𝑅𝑔)) (𝑍 (𝑅‘(𝑔𝑏))))    &   𝑋 = (𝑧𝑇𝑏𝑇 ((𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝑔)) → (𝑧𝑃) = 𝑌))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝐹𝑇𝐹 ≠ ( I ↾ 𝐵)) ∧ (𝐺𝑇𝐺 ≠ ( I ↾ 𝐵))) ∧ (𝑁𝑇 ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ (𝑏𝑇 ∧ (𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝐺)))) → (𝐺 / 𝑔𝑋𝑃) = ((𝑃 (𝑅𝐺)) (𝑍 (𝑅‘(𝐺𝑏)))))
 
Theoremcdlemk11tc 38080* Part of proof of Lemma K of [Crawley] p. 118. Lemma for Eq. 5, p. 119. 𝐺, 𝐼 stand for g, h. TODO: fix comment. (Contributed by NM, 21-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑍 = ((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹))))    &   𝑌 = ((𝑃 (𝑅𝑔)) (𝑍 (𝑅‘(𝑔𝑏))))    &   𝑋 = (𝑧𝑇𝑏𝑇 ((𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝑔)) → (𝑧𝑃) = 𝑌))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝐹𝑇𝐹 ≠ ( I ↾ 𝐵)) ∧ (𝐺𝑇𝐺 ≠ ( I ↾ 𝐵))) ∧ (𝑁𝑇 ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ (𝑏𝑇 ∧ (𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝐺)) ∧ (𝐼𝑇𝐼 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐼)))) → (𝐺 / 𝑔𝑋𝑃) ((𝐼 / 𝑔𝑋𝑃) (𝑅‘(𝐼𝐺))))
 
Theoremcdlemk11t 38081* Part of proof of Lemma K of [Crawley] p. 118. Eq. 5, line 36, p. 119. 𝐺, 𝐼 stand for g, h. 𝑋 represents tau. (Contributed by NM, 21-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑍 = ((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹))))    &   𝑌 = ((𝑃 (𝑅𝑔)) (𝑍 (𝑅‘(𝑔𝑏))))    &   𝑋 = (𝑧𝑇𝑏𝑇 ((𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝑔)) → (𝑧𝑃) = 𝑌))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝐹𝑇𝐹 ≠ ( I ↾ 𝐵)) ∧ (𝐺𝑇𝐺 ≠ ( I ↾ 𝐵))) ∧ (𝑁𝑇 ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ (𝐼𝑇𝐼 ≠ ( I ↾ 𝐵))) → (𝐺 / 𝑔𝑋𝑃) ((𝐼 / 𝑔𝑋𝑃) (𝑅‘(𝐼𝐺))))
 
Theoremcdlemk45 38082* Part of proof of Lemma K of [Crawley] p. 118. Line 37, p. 119. 𝐺, 𝐼 stand for g, h. 𝑋 represents tau. They do not explicitly mention the requirement (𝐺𝐼) ≠ ( I ↾ 𝐵). (Contributed by NM, 22-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑍 = ((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹))))    &   𝑌 = ((𝑃 (𝑅𝑔)) (𝑍 (𝑅‘(𝑔𝑏))))    &   𝑋 = (𝑧𝑇𝑏𝑇 ((𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝑔)) → (𝑧𝑃) = 𝑌))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝐹𝑇𝐹 ≠ ( I ↾ 𝐵)) ∧ (𝐺𝑇𝐺 ≠ ( I ↾ 𝐵))) ∧ (𝑁𝑇 ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ (𝐼𝑇𝐼 ≠ ( I ↾ 𝐵) ∧ (𝐺𝐼) ≠ ( I ↾ 𝐵))) → ((𝐺𝐼) / 𝑔𝑋𝑃) ((𝐼 / 𝑔𝑋𝑃) (𝑅𝐺)))
 
Theoremcdlemk46 38083* Part of proof of Lemma K of [Crawley] p. 118. Line 38 (last line), p. 119. 𝐺, 𝐼 stand for g, h. 𝑋 represents tau. (Contributed by NM, 22-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑍 = ((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹))))    &   𝑌 = ((𝑃 (𝑅𝑔)) (𝑍 (𝑅‘(𝑔𝑏))))    &   𝑋 = (𝑧𝑇𝑏𝑇 ((𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝑔)) → (𝑧𝑃) = 𝑌))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝐹𝑇𝐹 ≠ ( I ↾ 𝐵)) ∧ (𝐺𝑇𝐺 ≠ ( I ↾ 𝐵))) ∧ (𝑁𝑇 ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ (𝐼𝑇𝐼 ≠ ( I ↾ 𝐵) ∧ (𝐺𝐼) ≠ ( I ↾ 𝐵))) → ((𝐺𝐼) / 𝑔𝑋𝑃) ((𝐺 / 𝑔𝑋𝑃) (𝑅𝐼)))
 
Theoremcdlemk47 38084* Part of proof of Lemma K of [Crawley] p. 118. Line 2, p. 120. 𝐺, 𝐼 stand for g, h. 𝑋 represents tau. (Contributed by NM, 22-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑍 = ((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹))))    &   𝑌 = ((𝑃 (𝑅𝑔)) (𝑍 (𝑅‘(𝑔𝑏))))    &   𝑋 = (𝑧𝑇𝑏𝑇 ((𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝑔)) → (𝑧𝑃) = 𝑌))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝐹𝑇𝐹 ≠ ( I ↾ 𝐵)) ∧ (𝐺𝑇𝐺 ≠ ( I ↾ 𝐵))) ∧ (𝑁𝑇 ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ (𝐼𝑇𝐼 ≠ ( I ↾ 𝐵) ∧ (𝑅𝐺) ≠ (𝑅𝐼))) → ((𝐺𝐼) / 𝑔𝑋𝑃) = (((𝐺 / 𝑔𝑋𝑃) (𝑅𝐼)) ((𝐼 / 𝑔𝑋𝑃) (𝑅𝐺))))
 
Theoremcdlemk48 38085* Part of proof of Lemma K of [Crawley] p. 118. Line 4, p. 120. 𝐺, 𝐼 stand for g, h. 𝑋 represents tau. (Contributed by NM, 22-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑍 = ((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹))))    &   𝑌 = ((𝑃 (𝑅𝑔)) (𝑍 (𝑅‘(𝑔𝑏))))    &   𝑋 = (𝑧𝑇𝑏𝑇 ((𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝑔)) → (𝑧𝑃) = 𝑌))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝐹𝑇𝐹 ≠ ( I ↾ 𝐵)) ∧ (𝐺𝑇𝐺 ≠ ( I ↾ 𝐵))) ∧ (𝑁𝑇 ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ (𝐼𝑇𝐼 ≠ ( I ↾ 𝐵))) → ((𝐺 / 𝑔𝑋𝐼 / 𝑔𝑋)‘𝑃) ((𝐼 / 𝑔𝑋𝑃) (𝑅𝐺 / 𝑔𝑋)))
 
Theoremcdlemk49 38086* Part of proof of Lemma K of [Crawley] p. 118. Line 5, p. 120. 𝐺, 𝐼 stand for g, h. 𝑋 represents tau. (Contributed by NM, 23-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑍 = ((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹))))    &   𝑌 = ((𝑃 (𝑅𝑔)) (𝑍 (𝑅‘(𝑔𝑏))))    &   𝑋 = (𝑧𝑇𝑏𝑇 ((𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝑔)) → (𝑧𝑃) = 𝑌))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝐹𝑇𝐹 ≠ ( I ↾ 𝐵)) ∧ (𝐺𝑇𝐺 ≠ ( I ↾ 𝐵))) ∧ (𝑁𝑇 ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ (𝐼𝑇𝐼 ≠ ( I ↾ 𝐵))) → ((𝐺 / 𝑔𝑋𝐼 / 𝑔𝑋)‘𝑃) ((𝐺 / 𝑔𝑋𝑃) (𝑅𝐼 / 𝑔𝑋)))
 
Theoremcdlemk50 38087* Part of proof of Lemma K of [Crawley] p. 118. Line 6, p. 120. 𝐺, 𝐼 stand for g, h. 𝑋 represents tau. TODO: Combine into cdlemk52 38089? (Contributed by NM, 23-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑍 = ((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹))))    &   𝑌 = ((𝑃 (𝑅𝑔)) (𝑍 (𝑅‘(𝑔𝑏))))    &   𝑋 = (𝑧𝑇𝑏𝑇 ((𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝑔)) → (𝑧𝑃) = 𝑌))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝐹𝑇𝐹 ≠ ( I ↾ 𝐵)) ∧ (𝐺𝑇𝐺 ≠ ( I ↾ 𝐵))) ∧ (𝑁𝑇 ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ (𝐼𝑇𝐼 ≠ ( I ↾ 𝐵))) → ((𝐺 / 𝑔𝑋𝐼 / 𝑔𝑋)‘𝑃) (((𝐺 / 𝑔𝑋𝑃) (𝑅𝐼 / 𝑔𝑋)) ((𝐼 / 𝑔𝑋𝑃) (𝑅𝐺 / 𝑔𝑋))))
 
Theoremcdlemk51 38088* Part of proof of Lemma K of [Crawley] p. 118. Line 6, p. 120. 𝐺, 𝐼 stand for g, h. 𝑋 represents tau. TODO: Combine into cdlemk52 38089? (Contributed by NM, 23-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑍 = ((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹))))    &   𝑌 = ((𝑃 (𝑅𝑔)) (𝑍 (𝑅‘(𝑔𝑏))))    &   𝑋 = (𝑧𝑇𝑏𝑇 ((𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝑔)) → (𝑧𝑃) = 𝑌))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝐹𝑇𝐹 ≠ ( I ↾ 𝐵)) ∧ (𝐺𝑇𝐺 ≠ ( I ↾ 𝐵))) ∧ (𝑁𝑇 ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ (𝐼𝑇𝐼 ≠ ( I ↾ 𝐵))) → (((𝐺 / 𝑔𝑋𝑃) (𝑅𝐼 / 𝑔𝑋)) ((𝐼 / 𝑔𝑋𝑃) (𝑅𝐺 / 𝑔𝑋))) (((𝐺 / 𝑔𝑋𝑃) (𝑅𝐼)) ((𝐼 / 𝑔𝑋𝑃) (𝑅𝐺))))
 
Theoremcdlemk52 38089* Part of proof of Lemma K of [Crawley] p. 118. Line 6, p. 120. 𝐺, 𝐼 stand for g, h. 𝑋 represents tau. (Contributed by NM, 23-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑍 = ((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹))))    &   𝑌 = ((𝑃 (𝑅𝑔)) (𝑍 (𝑅‘(𝑔𝑏))))    &   𝑋 = (𝑧𝑇𝑏𝑇 ((𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝑔)) → (𝑧𝑃) = 𝑌))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝐹𝑇𝐹 ≠ ( I ↾ 𝐵)) ∧ (𝐺𝑇𝐺 ≠ ( I ↾ 𝐵))) ∧ (𝑁𝑇 ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ (𝐼𝑇𝐼 ≠ ( I ↾ 𝐵) ∧ (𝑅𝐺) ≠ (𝑅𝐼))) → ((𝐺 / 𝑔𝑋𝐼 / 𝑔𝑋)‘𝑃) = ((𝐺𝐼) / 𝑔𝑋𝑃))
 
Theoremcdlemk53a 38090* Lemma for cdlemk53 38092. (Contributed by NM, 26-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑍 = ((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹))))    &   𝑌 = ((𝑃 (𝑅𝑔)) (𝑍 (𝑅‘(𝑔𝑏))))    &   𝑋 = (𝑧𝑇𝑏𝑇 ((𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝑔)) → (𝑧𝑃) = 𝑌))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝐹𝑇𝐹 ≠ ( I ↾ 𝐵)) ∧ (𝐺𝑇𝐺 ≠ ( I ↾ 𝐵))) ∧ (𝑁𝑇 ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ (𝐼𝑇𝐼 ≠ ( I ↾ 𝐵) ∧ (𝑅𝐺) ≠ (𝑅𝐼))) → (𝐺𝐼) / 𝑔𝑋 = (𝐺 / 𝑔𝑋𝐼 / 𝑔𝑋))
 
Theoremcdlemk53b 38091* Lemma for cdlemk53 38092. (Contributed by NM, 26-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑍 = ((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹))))    &   𝑌 = ((𝑃 (𝑅𝑔)) (𝑍 (𝑅‘(𝑔𝑏))))    &   𝑋 = (𝑧𝑇𝑏𝑇 ((𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝑔)) → (𝑧𝑃) = 𝑌))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ ((𝐹𝑇𝐹 ≠ ( I ↾ 𝐵) ∧ 𝑁𝑇) ∧ 𝐺𝑇 ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊)) ∧ (𝐼𝑇𝐼 ≠ ( I ↾ 𝐵) ∧ (𝑅𝐺) ≠ (𝑅𝐼))) → (𝐺𝐼) / 𝑔𝑋 = (𝐺 / 𝑔𝑋𝐼 / 𝑔𝑋))
 
Theoremcdlemk53 38092* Part of proof of Lemma K of [Crawley] p. 118. Line 7, p. 120. 𝐺, 𝐼 stand for g, h. 𝑋 represents tau. (Contributed by NM, 26-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑍 = ((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹))))    &   𝑌 = ((𝑃 (𝑅𝑔)) (𝑍 (𝑅‘(𝑔𝑏))))    &   𝑋 = (𝑧𝑇𝑏𝑇 ((𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝑔)) → (𝑧𝑃) = 𝑌))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ ((𝐹𝑇𝐹 ≠ ( I ↾ 𝐵) ∧ 𝑁𝑇) ∧ 𝐺𝑇 ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊)) ∧ (𝐼𝑇 ∧ (𝑅𝐺) ≠ (𝑅𝐼))) → (𝐺𝐼) / 𝑔𝑋 = (𝐺 / 𝑔𝑋𝐼 / 𝑔𝑋))
 
Theoremcdlemk54 38093* Part of proof of Lemma K of [Crawley] p. 118. Line 10, p. 120. 𝐺, 𝐼 stand for g, h. 𝑋 represents tau. (Contributed by NM, 26-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑍 = ((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹))))    &   𝑌 = ((𝑃 (𝑅𝑔)) (𝑍 (𝑅‘(𝑔𝑏))))    &   𝑋 = (𝑧𝑇𝑏𝑇 ((𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝑔)) → (𝑧𝑃) = 𝑌))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ ((𝐹𝑇𝐹 ≠ ( I ↾ 𝐵) ∧ 𝑁𝑇) ∧ 𝐺𝑇 ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊)) ∧ ((𝐼𝑇 ∧ (𝑅𝐺) = (𝑅𝐼)) ∧ 𝑗𝑇 ∧ (𝑗 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑗) ≠ (𝑅𝐺) ∧ (𝑅𝑗) ≠ (𝑅‘(𝐺𝐼))))) → ((𝐺𝐼) / 𝑔𝑋𝑗 / 𝑔𝑋) = ((𝐺 / 𝑔𝑋𝐼 / 𝑔𝑋) ∘ 𝑗 / 𝑔𝑋))
 
Theoremcdlemk55a 38094* Lemma for cdlemk55 38096. (Contributed by NM, 26-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑍 = ((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹))))    &   𝑌 = ((𝑃 (𝑅𝑔)) (𝑍 (𝑅‘(𝑔𝑏))))    &   𝑋 = (𝑧𝑇𝑏𝑇 ((𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝑔)) → (𝑧𝑃) = 𝑌))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ ((𝐹𝑇𝐹 ≠ ( I ↾ 𝐵) ∧ 𝑁𝑇) ∧ 𝐺𝑇 ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊)) ∧ ((𝐼𝑇 ∧ (𝑅𝐺) = (𝑅𝐼)) ∧ 𝑗𝑇 ∧ (𝑗 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑗) ≠ (𝑅𝐺) ∧ (𝑅𝑗) ≠ (𝑅‘(𝐺𝐼))))) → (𝐺𝐼) / 𝑔𝑋 = (𝐺 / 𝑔𝑋𝐼 / 𝑔𝑋))
 
Theoremcdlemk55b 38095* Lemma for cdlemk55 38096. (Contributed by NM, 26-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑍 = ((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹))))    &   𝑌 = ((𝑃 (𝑅𝑔)) (𝑍 (𝑅‘(𝑔𝑏))))    &   𝑋 = (𝑧𝑇𝑏𝑇 ((𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝑔)) → (𝑧𝑃) = 𝑌))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ ((𝐹𝑇𝐹 ≠ ( I ↾ 𝐵) ∧ 𝑁𝑇) ∧ 𝐺𝑇 ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊)) ∧ (𝐼𝑇 ∧ (𝑅𝐺) = (𝑅𝐼))) → (𝐺𝐼) / 𝑔𝑋 = (𝐺 / 𝑔𝑋𝐼 / 𝑔𝑋))
 
Theoremcdlemk55 38096* Part of proof of Lemma K of [Crawley] p. 118. Line 11, p. 120. 𝐺, 𝐼 stand for g, h. 𝑋 represents tau. (Contributed by NM, 26-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑍 = ((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹))))    &   𝑌 = ((𝑃 (𝑅𝑔)) (𝑍 (𝑅‘(𝑔𝑏))))    &   𝑋 = (𝑧𝑇𝑏𝑇 ((𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝑔)) → (𝑧𝑃) = 𝑌))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ ((𝐹𝑇𝐹 ≠ ( I ↾ 𝐵) ∧ 𝑁𝑇) ∧ 𝐺𝑇𝐼𝑇) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊)) → (𝐺𝐼) / 𝑔𝑋 = (𝐺 / 𝑔𝑋𝐼 / 𝑔𝑋))
 
TheoremcdlemkyyN 38097* Part of proof of Lemma K of [Crawley] p. 118. TODO: clean up (𝑏𝑌𝐺) stuff. (Contributed by NM, 21-Jul-2013.) (New usage is discouraged.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑍 = ((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹))))    &   𝑌 = ((𝑃 (𝑅𝑔)) (𝑍 (𝑅‘(𝑔𝑏))))    &   𝑋 = (𝑧𝑇𝑏𝑇 ((𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝑔)) → (𝑧𝑃) = 𝑌))    &   𝑆 = (𝑓𝑇 ↦ (𝑖𝑇 (𝑖𝑃) = ((𝑃 (𝑅𝑓)) ((𝑁𝑃) (𝑅‘(𝑓𝐹))))))    &   𝑉 = (𝑑𝑇, 𝑒𝑇 ↦ (𝑗𝑇 (𝑗𝑃) = ((𝑃 (𝑅𝑒)) (((𝑆𝑑)‘𝑃) (𝑅‘(𝑒𝑑))))))       (((𝐾 ∈ HL ∧ 𝑊𝐻 ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ ((𝐹𝑇𝐹 ≠ ( I ↾ 𝐵) ∧ 𝑁𝑇) ∧ (𝐺𝑇𝐺 ≠ ( I ↾ 𝐵)) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊)) ∧ (𝑏𝑇 ∧ (𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝐺)))) → (𝐺 / 𝑔𝑋𝑃) = ((𝑏𝑉𝐺)‘𝑃))
 
Theoremcdlemk43N 38098* Part of proof of Lemma K of [Crawley] p. 118. TODO: fix comment. (Contributed by NM, 31-Jul-2013.) (New usage is discouraged.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑍 = ((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹))))    &   𝑌 = ((𝑃 (𝑅𝑔)) (𝑍 (𝑅‘(𝑔𝑏))))    &   𝑋 = (𝑧𝑇𝑏𝑇 ((𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝑔)) → (𝑧𝑃) = 𝑌))    &   𝑈 = (𝑔𝑇 ↦ if(𝐹 = 𝑁, 𝑔, 𝑋))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ ((𝐹𝑇𝑁𝑇𝐹𝑁) ∧ (𝐺𝑇𝐺 ≠ ( I ↾ 𝐵)) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊)) ∧ (𝑏𝑇 ∧ (𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝐺)))) → ((𝑈𝐺)‘𝑃) = 𝐺 / 𝑔𝑌)
 
Theoremcdlemk35u 38099* Substitution version of cdlemk35 38047. (Contributed by NM, 31-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑍 = ((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹))))    &   𝑌 = ((𝑃 (𝑅𝑔)) (𝑍 (𝑅‘(𝑔𝑏))))    &   𝑋 = (𝑧𝑇𝑏𝑇 ((𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝑔)) → (𝑧𝑃) = 𝑌))    &   𝑈 = (𝑔𝑇 ↦ if(𝐹 = 𝑁, 𝑔, 𝑋))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑅𝐹) = (𝑅𝑁)) ∧ (𝐹𝑇𝑁𝑇𝐺𝑇) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊)) → (𝑈𝐺) ∈ 𝑇)
 
Theoremcdlemk55u1 38100* Lemma for cdlemk55u 38101. (Contributed by NM, 31-Jul-2013.)
𝐵 = (Base‘𝐾)    &    = (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑍 = ((𝑃 (𝑅𝑏)) ((𝑁𝑃) (𝑅‘(𝑏𝐹))))    &   𝑌 = ((𝑃 (𝑅𝑔)) (𝑍 (𝑅‘(𝑔𝑏))))    &   𝑋 = (𝑧𝑇𝑏𝑇 ((𝑏 ≠ ( I ↾ 𝐵) ∧ (𝑅𝑏) ≠ (𝑅𝐹) ∧ (𝑅𝑏) ≠ (𝑅𝑔)) → (𝑧𝑃) = 𝑌))    &   𝑈 = (𝑔𝑇 ↦ if(𝐹 = 𝑁, 𝑔, 𝑋))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇𝑁𝑇) ∧ (((𝑅𝐹) = (𝑅𝑁) ∧ 𝐹𝑁) ∧ 𝐺𝑇𝐼𝑇) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊)) → (𝑈‘(𝐺𝐼)) = ((𝑈𝐺) ∘ (𝑈𝐼)))
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