Home Metamath Proof ExplorerTheorem List (p. 369 of 437) < Previous  Next > Bad symbols? Try the GIF version. Mirrors  >  Metamath Home Page  >  MPE Home Page  >  Theorem List Contents  >  Recent Proofs       This page: Page List

 Color key: Metamath Proof Explorer (1-28364) Hilbert Space Explorer (28365-29889) Users' Mathboxes (29890-43671)

Theorem List for Metamath Proof Explorer - 36801-36900   *Has distinct variable group(s)
TypeLabelDescription
Statement

Theoremcdlemg11aq 36801 TODO: FIX COMMENT. TODO: can proof using this be restructured to use cdlemg11a 36800? (Contributed by NM, 4-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ ((𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ (𝐹𝑇𝐺𝑇 ∧ ((𝐹‘(𝐺𝑃)) (𝐹‘(𝐺𝑄))) ≠ (𝑃 𝑄))) → (𝐹‘(𝐺𝑄)) ≠ 𝑄)

Theoremcdlemg10c 36802 TODO: FIX COMMENT. TODO: Can this be moved up as a stand-alone theorem in trl* area? (Contributed by NM, 4-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ ((𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ (𝐹𝑇𝐺𝑇)) → ((𝑅𝐹) ((𝐺𝑃) (𝐺𝑄)) ↔ (𝑅𝐹) (𝑃 𝑄)))

Theoremcdlemg10a 36803 TODO: FIX COMMENT. (Contributed by NM, 3-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ (𝐹𝑇𝐺𝑇𝑃𝑄) ∧ (((𝐹‘(𝐺𝑃)) (𝐹‘(𝐺𝑄))) ≠ (𝑃 𝑄) ∧ ¬ (𝑅𝐹) (𝑃 𝑄) ∧ ¬ (𝑅𝐺) (𝑃 𝑄))) → ((𝑃 (𝐹‘(𝐺𝑃))) (𝑄 (𝐹‘(𝐺𝑄)))) ((𝑅𝐹) (𝑅𝐺)))

Theoremcdlemg10 36804 TODO: FIX COMMENT. (Contributed by NM, 4-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ (𝐹𝑇𝐺𝑇𝑃𝑄) ∧ (((𝐹‘(𝐺𝑃)) (𝐹‘(𝐺𝑄))) ≠ (𝑃 𝑄) ∧ ¬ (𝑅𝐹) (𝑃 𝑄) ∧ ¬ (𝑅𝐺) (𝑃 𝑄))) → ((𝑃 (𝐹‘(𝐺𝑃))) (𝑄 (𝐹‘(𝐺𝑄)))) 𝑊)

Theoremcdlemg11b 36805 TODO: FIX COMMENT. (Contributed by NM, 5-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ ((𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ 𝑄𝐴) ∧ (𝐺𝑇𝑃𝑄 ∧ ¬ (𝑅𝐺) (𝑃 𝑄))) → (𝑃 𝑄) ≠ ((𝐺𝑃) (𝐺𝑄)))

Theoremcdlemg12a 36806 TODO: FIX COMMENT. (Contributed by NM, 5-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑈 = ((𝑃 𝑄) 𝑊)       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ ((𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊) ∧ 𝐹𝑇) ∧ (𝐺𝑇𝑃𝑄 ∧ (𝑃 𝑈) ≠ ((𝐺𝑃) 𝑈))) → ((𝑃 𝑈) ((𝐺𝑃) 𝑈)) ((𝐹‘(𝐺𝑃)) 𝑈))

Theoremcdlemg12b 36807 The triples 𝑃, (𝐹𝑃), (𝐹‘(𝐺𝑃))⟩ and 𝑄, (𝐹𝑄), (𝐹‘(𝐺𝑄))⟩ are centrally perspective. TODO: FIX COMMENT. (Contributed by NM, 5-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ ((𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊) ∧ 𝐹𝑇) ∧ (𝐺𝑇𝑃𝑄 ∧ ¬ (𝑅𝐺) (𝑃 𝑄))) → ((𝑃 𝑄) ((𝐺𝑃) (𝐺𝑄))) ((𝐹‘(𝐺𝑃)) (𝐹‘(𝐺𝑄))))

Theoremcdlemg12c 36808 The triples 𝑃, (𝐹𝑃), (𝐹‘(𝐺𝑃))⟩ and 𝑄, (𝐹𝑄), (𝐹‘(𝐺𝑄))⟩ are axially perspective by dalaw 36049. TODO: FIX COMMENT. (Contributed by NM, 5-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ ((𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊) ∧ 𝐹𝑇) ∧ (𝐺𝑇𝑃𝑄 ∧ ¬ (𝑅𝐺) (𝑃 𝑄))) → ((𝑃 (𝐺𝑃)) (𝑄 (𝐺𝑄))) ((((𝐺𝑃) (𝐹‘(𝐺𝑃))) ((𝐺𝑄) (𝐹‘(𝐺𝑄)))) (((𝐹‘(𝐺𝑃)) 𝑃) ((𝐹‘(𝐺𝑄)) 𝑄))))

Theoremcdlemg12d 36809 TODO: FIX COMMENT. (Contributed by NM, 5-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ (𝐹𝑇𝐺𝑇) ∧ (𝑃𝑄 ∧ ¬ (𝑅𝐹) (𝑃 𝑄) ∧ ¬ (𝑅𝐺) (𝑃 𝑄))) → (𝑅𝐺) ((𝑅𝐹) (((𝐹‘(𝐺𝑃)) 𝑃) ((𝐹‘(𝐺𝑄)) 𝑄))))

Theoremcdlemg12e 36810 TODO: FIX COMMENT. (Contributed by NM, 6-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &    0 = (0.‘𝐾)       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ (𝐹𝑇𝐺𝑇𝑃𝑄) ∧ (¬ (𝑅𝐹) (𝑃 𝑄) ∧ ¬ (𝑅𝐺) (𝑃 𝑄) ∧ (𝑅𝐹) ≠ (𝑅𝐺))) → (((𝐹‘(𝐺𝑃)) 𝑃) ((𝐹‘(𝐺𝑄)) 𝑄)) ≠ 0 )

Theoremcdlemg12f 36811 TODO: FIX COMMENT. (Contributed by NM, 6-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ (𝐹𝑇𝐺𝑇𝑃𝑄) ∧ ((¬ (𝑅𝐹) (𝑃 𝑄) ∧ ¬ (𝑅𝐺) (𝑃 𝑄)) ∧ (𝑅𝐹) ≠ (𝑅𝐺) ∧ ((𝐹‘(𝐺𝑃)) (𝐹‘(𝐺𝑄))) ≠ (𝑃 𝑄))) → ((𝑃 (𝐹‘(𝐺𝑃))) (𝑄 (𝐹‘(𝐺𝑄)))) ((𝑃 (𝐹‘(𝐺𝑃))) 𝑊))

Theoremcdlemg12g 36812 TODO: FIX COMMENT. TODO: Combine with cdlemg12f 36811. (Contributed by NM, 6-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ (𝐹𝑇𝐺𝑇𝑃𝑄) ∧ ((¬ (𝑅𝐹) (𝑃 𝑄) ∧ ¬ (𝑅𝐺) (𝑃 𝑄)) ∧ (𝑅𝐹) ≠ (𝑅𝐺) ∧ ((𝐹‘(𝐺𝑃)) (𝐹‘(𝐺𝑄))) ≠ (𝑃 𝑄))) → ((𝑃 (𝐹‘(𝐺𝑃))) (𝑄 (𝐹‘(𝐺𝑄)))) = ((𝑃 (𝐹‘(𝐺𝑃))) 𝑊))

Theoremcdlemg12 36813 TODO: FIX COMMENT. (Contributed by NM, 6-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ (𝐹𝑇𝐺𝑇𝑃𝑄) ∧ ((¬ (𝑅𝐹) (𝑃 𝑄) ∧ ¬ (𝑅𝐺) (𝑃 𝑄)) ∧ (𝑅𝐹) ≠ (𝑅𝐺) ∧ ((𝐹‘(𝐺𝑃)) (𝐹‘(𝐺𝑄))) ≠ (𝑃 𝑄))) → ((𝑃 (𝐹‘(𝐺𝑃))) 𝑊) = ((𝑄 (𝐹‘(𝐺𝑄))) 𝑊))

Theoremcdlemg13a 36814 TODO: FIX COMMENT. (Contributed by NM, 6-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ (𝐹𝑇𝐺𝑇) ∧ ((𝐹𝑃) ≠ 𝑃 ∧ (𝑅𝐹) = (𝑅𝐺) ∧ ((𝐹‘(𝐺𝑃)) (𝐹‘(𝐺𝑄))) ≠ (𝑃 𝑄))) → (𝑃 (𝐹‘(𝐺𝑃))) = ((𝐺𝑃) (𝐹‘(𝐺𝑃))))

Theoremcdlemg13 36815 TODO: FIX COMMENT. (Contributed by NM, 6-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ (𝐹𝑇𝐺𝑇) ∧ ((𝐹𝑃) ≠ 𝑃 ∧ (𝑅𝐹) = (𝑅𝐺) ∧ ((𝐹‘(𝐺𝑃)) (𝐹‘(𝐺𝑄))) ≠ (𝑃 𝑄))) → ((𝑃 (𝐹‘(𝐺𝑃))) 𝑊) = ((𝑄 (𝐹‘(𝐺𝑄))) 𝑊))

Theoremcdlemg14f 36816 TODO: FIX COMMENT. (Contributed by NM, 6-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ ((𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ (𝐹𝑇𝐺𝑇 ∧ (𝐹𝑃) = 𝑃)) → ((𝑃 (𝐹‘(𝐺𝑃))) 𝑊) = ((𝑄 (𝐹‘(𝐺𝑄))) 𝑊))

Theoremcdlemg14g 36817 TODO: FIX COMMENT. (Contributed by NM, 22-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ ((𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ (𝐹𝑇𝐺𝑇 ∧ (𝐺𝑃) = 𝑃)) → ((𝑃 (𝐹‘(𝐺𝑃))) 𝑊) = ((𝑄 (𝐹‘(𝐺𝑄))) 𝑊))

Theoremcdlemg15a 36818 Eliminate the (𝐹𝑃) ≠ 𝑃 condition from cdlemg13 36815. TODO: FIX COMMENT. (Contributed by NM, 6-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ (𝐹𝑇𝐺𝑇) ∧ ((𝑅𝐹) = (𝑅𝐺) ∧ ((𝐹‘(𝐺𝑃)) (𝐹‘(𝐺𝑄))) ≠ (𝑃 𝑄))) → ((𝑃 (𝐹‘(𝐺𝑃))) 𝑊) = ((𝑄 (𝐹‘(𝐺𝑄))) 𝑊))

Theoremcdlemg15 36819 Eliminate the ((𝐹‘(𝐺𝑃)) (𝐹‘(𝐺𝑄))) ≠ (𝑃 𝑄) condition from cdlemg13 36815. TODO: FIX COMMENT. (Contributed by NM, 25-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ (𝐹𝑇𝐺𝑇) ∧ (𝑅𝐹) = (𝑅𝐺)) → ((𝑃 (𝐹‘(𝐺𝑃))) 𝑊) = ((𝑄 (𝐹‘(𝐺𝑄))) 𝑊))

Theoremcdlemg16 36820 Part of proof of Lemma G of [Crawley] p. 116; 2nd line p. 117, which says that (our) cdlemg10 36804 "implies (2)" (of p. 116). No details are provided by the authors, so there may be a shorter proof; but ours requires the 14 lemmas, one using Desargues's law dalaw 36049, in order to make this inference. This final step eliminates the (𝑅𝐹) ≠ (𝑅𝐺) condition from cdlemg12 36813. TODO: FIX COMMENT. TODO: should we also eliminate 𝑃𝑄 here (or earlier)? Do it if we don't need to add it in for something else later. (Contributed by NM, 6-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ (𝐹𝑇𝐺𝑇𝑃𝑄) ∧ (¬ (𝑅𝐹) (𝑃 𝑄) ∧ ¬ (𝑅𝐺) (𝑃 𝑄) ∧ ((𝐹‘(𝐺𝑃)) (𝐹‘(𝐺𝑄))) ≠ (𝑃 𝑄))) → ((𝑃 (𝐹‘(𝐺𝑃))) 𝑊) = ((𝑄 (𝐹‘(𝐺𝑄))) 𝑊))

Theoremcdlemg16ALTN 36821 This version of cdlemg16 36820 uses cdlemg15a 36818 instead of cdlemg15 36819, in case cdlemg15 36819 ends up not being needed. TODO: FIX COMMENT. (Contributed by NM, 6-May-2013.) (New usage is discouraged.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       (((𝐾 ∈ HL ∧ 𝑊𝐻 ∧ (𝐹𝑇𝐺𝑇)) ∧ ((𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊) ∧ 𝑃𝑄) ∧ (((𝐹‘(𝐺𝑃)) (𝐹‘(𝐺𝑄))) ≠ (𝑃 𝑄) ∧ ¬ (𝑅𝐹) (𝑃 𝑄) ∧ ¬ (𝑅𝐺) (𝑃 𝑄))) → ((𝑃 (𝐹‘(𝐺𝑃))) 𝑊) = ((𝑄 (𝐹‘(𝐺𝑄))) 𝑊))

Theoremcdlemg16z 36822 Eliminate ((𝐹‘(𝐺𝑃)) (𝐹‘(𝐺𝑄))) ≠ (𝑃 𝑄) condition from cdlemg16 36820. TODO: would it help to also eliminate 𝑃𝑄 here or later? (Contributed by NM, 25-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ (𝐹𝑇𝐺𝑇𝑃𝑄) ∧ (¬ (𝑅𝐹) (𝑃 𝑄) ∧ ¬ (𝑅𝐺) (𝑃 𝑄))) → ((𝑃 (𝐹‘(𝐺𝑃))) 𝑊) = ((𝑄 (𝐹‘(𝐺𝑄))) 𝑊))

Theoremcdlemg16zz 36823 Eliminate 𝑃𝑄 from cdlemg16z 36822. TODO: Use this only if needed. (Contributed by NM, 26-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ ((𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊) ∧ 𝐹𝑇) ∧ (𝐺𝑇 ∧ ¬ (𝑅𝐹) (𝑃 𝑄) ∧ ¬ (𝑅𝐺) (𝑃 𝑄))) → ((𝑃 (𝐹‘(𝐺𝑃))) 𝑊) = ((𝑄 (𝐹‘(𝐺𝑄))) 𝑊))

Theoremcdlemg17a 36824 TODO: FIX COMMENT. (Contributed by NM, 8-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ ((𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ (𝐺𝑇 ∧ (𝑅𝐺) (𝑃 𝑄))) → (𝐺𝑃) (𝑃 𝑄))

Theoremcdlemg17b 36825* Part of proof of Lemma G in [Crawley] p. 117, 4th line. Whenever (in their terminology) p q/0 (i.e. the sublattice from 0 to p q) contains precisely three atoms and g is not the identity, g(p) = q. See also comments under cdleme0nex 36453. (Contributed by NM, 8-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ (𝐺𝑇𝑃𝑄) ∧ ((𝐺𝑃) ≠ 𝑃 ∧ (𝑅𝐺) (𝑃 𝑄) ∧ ¬ ∃𝑟𝐴𝑟 𝑊 ∧ (𝑃 𝑟) = (𝑄 𝑟)))) → (𝐺𝑃) = 𝑄)

Theoremcdlemg17dN 36826* TODO: fix comment. (Contributed by NM, 9-May-2013.) (New usage is discouraged.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       (((𝐾 ∈ HL ∧ 𝑊𝐻𝐺𝑇) ∧ ((𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊) ∧ 𝑃𝑄) ∧ ((𝑅𝐺) (𝑃 𝑄) ∧ ¬ ∃𝑟𝐴𝑟 𝑊 ∧ (𝑃 𝑟) = (𝑄 𝑟)) ∧ (𝐺𝑃) ≠ 𝑃)) → (𝑅𝐺) = ((𝑃 𝑄) 𝑊))

Theoremcdlemg17dALTN 36827 Same as cdlemg17dN 36826 with fewer antecedents but longer proof TODO: fix comment. (Contributed by NM, 9-May-2013.) (New usage is discouraged.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       (((𝐾 ∈ HL ∧ 𝑊𝐻𝐺𝑇) ∧ ((𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ 𝑄𝐴𝑃𝑄) ∧ ((𝑅𝐺) (𝑃 𝑄) ∧ (𝐺𝑃) ≠ 𝑃)) → (𝑅𝐺) = ((𝑃 𝑄) 𝑊))

Theoremcdlemg17e 36828* TODO: fix comment. (Contributed by NM, 8-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ (𝐹𝑇𝐺𝑇𝑃𝑄) ∧ ((𝐺𝑃) ≠ 𝑃 ∧ (𝑅𝐺) (𝑃 𝑄) ∧ ¬ ∃𝑟𝐴𝑟 𝑊 ∧ (𝑃 𝑟) = (𝑄 𝑟)))) → ((𝐹𝑃) (𝐹𝑄)) = ((𝐹𝑃) (𝑅𝐺)))

Theoremcdlemg17f 36829* TODO: fix comment. (Contributed by NM, 8-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ (𝐹𝑇𝐺𝑇𝑃𝑄) ∧ ((𝐺𝑃) ≠ 𝑃 ∧ (𝑅𝐺) (𝑃 𝑄) ∧ ¬ ∃𝑟𝐴𝑟 𝑊 ∧ (𝑃 𝑟) = (𝑄 𝑟)))) → ((𝐹𝑃) (𝐹𝑄)) = ((𝐹𝑃) (𝐺‘(𝐹𝑃))))

Theoremcdlemg17g 36830* TODO: fix comment. (Contributed by NM, 9-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ (𝐹𝑇𝐺𝑇𝑃𝑄) ∧ ((𝐺𝑃) ≠ 𝑃 ∧ (𝑅𝐺) (𝑃 𝑄) ∧ ¬ ∃𝑟𝐴𝑟 𝑊 ∧ (𝑃 𝑟) = (𝑄 𝑟)))) → (𝐺‘(𝐹𝑃)) ((𝐹𝑃) (𝐹𝑄)))

Theoremcdlemg17h 36831* TODO: fix comment. (Contributed by NM, 10-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ ((𝑆𝐴 ∧ ¬ 𝑆 𝑊) ∧ (𝐹𝑇𝐺𝑇) ∧ (𝑃𝑄𝑆 ((𝐹𝑃) (𝐹𝑄)))) ∧ ((𝐺𝑃) ≠ 𝑃 ∧ (𝑅𝐺) (𝑃 𝑄) ∧ ¬ ∃𝑟𝐴𝑟 𝑊 ∧ (𝑃 𝑟) = (𝑄 𝑟)))) → (𝑆 = (𝐹𝑃) ∨ 𝑆 = (𝐹𝑄)))

Theoremcdlemg17i 36832* TODO: fix comment. (Contributed by NM, 10-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ (𝐹𝑇𝐺𝑇𝑃𝑄) ∧ ((𝐺𝑃) ≠ 𝑃 ∧ (𝑅𝐺) (𝑃 𝑄) ∧ ¬ ∃𝑟𝐴𝑟 𝑊 ∧ (𝑃 𝑟) = (𝑄 𝑟)))) → (𝐺‘(𝐹𝑃)) = (𝐹𝑄))

Theoremcdlemg17ir 36833* TODO: fix comment. (Contributed by NM, 13-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ (𝐹𝑇𝐺𝑇𝑃𝑄) ∧ ((𝐺𝑃) ≠ 𝑃 ∧ (𝑅𝐺) (𝑃 𝑄) ∧ ¬ ∃𝑟𝐴𝑟 𝑊 ∧ (𝑃 𝑟) = (𝑄 𝑟)))) → (𝐹‘(𝐺𝑃)) = (𝐹𝑄))

Theoremcdlemg17j 36834* TODO: fix comment. (Contributed by NM, 11-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ (𝐹𝑇𝐺𝑇𝑃𝑄) ∧ ((𝐺𝑃) ≠ 𝑃 ∧ (𝑅𝐺) (𝑃 𝑄) ∧ ¬ ∃𝑟𝐴𝑟 𝑊 ∧ (𝑃 𝑟) = (𝑄 𝑟)))) → (𝐺‘(𝐹𝑃)) = (𝐹‘(𝐺𝑃)))

Theoremcdlemg17pq 36835* Utility theorem for swapping 𝑃 and 𝑄. TODO: fix comment. (Contributed by NM, 11-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ (𝐹𝑇𝐺𝑇𝑃𝑄) ∧ ((𝐺𝑃) ≠ 𝑃 ∧ (𝑅𝐺) (𝑃 𝑄) ∧ ¬ ∃𝑟𝐴𝑟 𝑊 ∧ (𝑃 𝑟) = (𝑄 𝑟)))) → (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊)) ∧ (𝐹𝑇𝐺𝑇𝑄𝑃) ∧ ((𝐺𝑄) ≠ 𝑄 ∧ (𝑅𝐺) (𝑄 𝑃) ∧ ¬ ∃𝑟𝐴𝑟 𝑊 ∧ (𝑄 𝑟) = (𝑃 𝑟)))))

Theoremcdlemg17bq 36836* cdlemg17b 36825 with 𝑃 and 𝑄 swapped. Antecedent 𝐹 ∈ (𝑇𝑊) is redundant for easier use. TODO: should we have redundant antecedent for cdlemg17b 36825 also? (Contributed by NM, 13-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ (𝐹𝑇𝐺𝑇𝑃𝑄) ∧ ((𝐺𝑃) ≠ 𝑃 ∧ (𝑅𝐺) (𝑃 𝑄) ∧ ¬ ∃𝑟𝐴𝑟 𝑊 ∧ (𝑃 𝑟) = (𝑄 𝑟)))) → (𝐺𝑄) = 𝑃)

Theoremcdlemg17iqN 36837* cdlemg17i 36832 with 𝑃 and 𝑄 swapped. (Contributed by NM, 13-May-2013.) (New usage is discouraged.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       (((𝐾 ∈ HL ∧ 𝑊𝐻 ∧ (𝐹𝑇𝐺𝑇)) ∧ ((𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊) ∧ 𝑃𝑄) ∧ ((𝑅𝐺) (𝑃 𝑄) ∧ ¬ ∃𝑟𝐴𝑟 𝑊 ∧ (𝑃 𝑟) = (𝑄 𝑟)) ∧ (𝐺𝑃) ≠ 𝑃)) → (𝐺‘(𝐹𝑄)) = (𝐹𝑃))

Theoremcdlemg17irq 36838* cdlemg17ir 36833 with 𝑃 and 𝑄 swapped. (Contributed by NM, 13-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ (𝐹𝑇𝐺𝑇𝑃𝑄) ∧ ((𝐺𝑃) ≠ 𝑃 ∧ (𝑅𝐺) (𝑃 𝑄) ∧ ¬ ∃𝑟𝐴𝑟 𝑊 ∧ (𝑃 𝑟) = (𝑄 𝑟)))) → (𝐹‘(𝐺𝑄)) = (𝐹𝑃))

Theoremcdlemg17jq 36839* cdlemg17j 36834 with 𝑃 and 𝑄 swapped. (Contributed by NM, 13-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ (𝐹𝑇𝐺𝑇𝑃𝑄) ∧ ((𝐺𝑃) ≠ 𝑃 ∧ (𝑅𝐺) (𝑃 𝑄) ∧ ¬ ∃𝑟𝐴𝑟 𝑊 ∧ (𝑃 𝑟) = (𝑄 𝑟)))) → (𝐺‘(𝐹𝑄)) = (𝐹‘(𝐺𝑄)))

Theoremcdlemg17 36840* Part of Lemma G of [Crawley] p. 117, lines 7 and 8. We show an argument whose value at 𝐺 equals itself. TODO: fix comment. (Contributed by NM, 12-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ (𝐹𝑇𝐺𝑇𝑃𝑄) ∧ ((𝐺𝑃) ≠ 𝑃 ∧ (𝑅𝐺) (𝑃 𝑄) ∧ ¬ ∃𝑟𝐴𝑟 𝑊 ∧ (𝑃 𝑟) = (𝑄 𝑟)))) → (𝐺‘((𝑃 (𝐹‘(𝐺𝑃))) (𝑄 (𝐹‘(𝐺𝑄))))) = ((𝑃 (𝐹‘(𝐺𝑃))) (𝑄 (𝐹‘(𝐺𝑄)))))

Theoremcdlemg18a 36841 Show two lines are different. TODO: fix comment. (Contributed by NM, 14-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴𝑄𝐴𝐹𝑇) ∧ (𝑃𝑄 ∧ ((𝐹𝑄) (𝐹𝑃)) ≠ (𝑃 𝑄))) → (𝑃 (𝐹𝑄)) ≠ (𝑄 (𝐹𝑃)))

Theoremcdlemg18b 36842 Lemma for cdlemg18c 36843. TODO: fix comment. (Contributed by NM, 15-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑈 = ((𝑃 𝑄) 𝑊)       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ ((𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊) ∧ 𝐹𝑇) ∧ (𝑃𝑄 ∧ (𝐹𝑃) ≠ 𝑄 ∧ ((𝐹𝑄) (𝐹𝑃)) ≠ (𝑃 𝑄))) → ¬ 𝑃 (𝑈 (𝐹𝑄)))

Theoremcdlemg18c 36843 Show two lines intersect at an atom. TODO: fix comment. (Contributed by NM, 15-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑈 = ((𝑃 𝑄) 𝑊)       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ ((𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊) ∧ 𝐹𝑇) ∧ (𝑃𝑄 ∧ (𝐹𝑃) ≠ 𝑄 ∧ ((𝐹𝑄) (𝐹𝑃)) ≠ (𝑃 𝑄))) → ((𝑃 (𝐹𝑄)) (𝑄 (𝐹𝑃))) ∈ 𝐴)

Theoremcdlemg18d 36844* Show two lines intersect at an atom. TODO: fix comment. (Contributed by NM, 15-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ ((𝐹𝑇𝐺𝑇) ∧ 𝑃𝑄 ∧ (𝐺𝑃) ≠ 𝑃) ∧ ((𝑅𝐺) (𝑃 𝑄) ∧ ((𝐹‘(𝐺𝑃)) (𝐹‘(𝐺𝑄))) ≠ (𝑃 𝑄) ∧ ¬ ∃𝑟𝐴𝑟 𝑊 ∧ (𝑃 𝑟) = (𝑄 𝑟)))) → ((𝑃 (𝐹‘(𝐺𝑃))) (𝑄 (𝐹‘(𝐺𝑄)))) ∈ 𝐴)

Theoremcdlemg18 36845* Show two lines intersect at an atom. TODO: fix comment. (Contributed by NM, 15-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ ((𝐹𝑇𝐺𝑇) ∧ 𝑃𝑄 ∧ (𝐺𝑃) ≠ 𝑃) ∧ ((𝑅𝐺) (𝑃 𝑄) ∧ ((𝐹‘(𝐺𝑃)) (𝐹‘(𝐺𝑄))) ≠ (𝑃 𝑄) ∧ ¬ ∃𝑟𝐴𝑟 𝑊 ∧ (𝑃 𝑟) = (𝑄 𝑟)))) → ((𝑃 (𝐹‘(𝐺𝑃))) (𝑄 (𝐹‘(𝐺𝑄)))) 𝑊)

Theoremcdlemg19a 36846* Show two lines intersect at an atom. TODO: fix comment. (Contributed by NM, 15-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ ((𝐹𝑇𝐺𝑇) ∧ 𝑃𝑄 ∧ (𝐺𝑃) ≠ 𝑃) ∧ ((𝑅𝐺) (𝑃 𝑄) ∧ ((𝐹‘(𝐺𝑃)) (𝐹‘(𝐺𝑄))) ≠ (𝑃 𝑄) ∧ ¬ ∃𝑟𝐴𝑟 𝑊 ∧ (𝑃 𝑟) = (𝑄 𝑟)))) → ((𝑃 (𝐹‘(𝐺𝑃))) (𝑄 (𝐹‘(𝐺𝑄)))) = ((𝑃 (𝐹‘(𝐺𝑃))) 𝑊))

Theoremcdlemg19 36847* Show two lines intersect at an atom. TODO: fix comment. (Contributed by NM, 15-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ ((𝐹𝑇𝐺𝑇) ∧ 𝑃𝑄 ∧ (𝐺𝑃) ≠ 𝑃) ∧ ((𝑅𝐺) (𝑃 𝑄) ∧ ((𝐹‘(𝐺𝑃)) (𝐹‘(𝐺𝑄))) ≠ (𝑃 𝑄) ∧ ¬ ∃𝑟𝐴𝑟 𝑊 ∧ (𝑃 𝑟) = (𝑄 𝑟)))) → ((𝑃 (𝐹‘(𝐺𝑃))) 𝑊) = ((𝑄 (𝐹‘(𝐺𝑄))) 𝑊))

Theoremcdlemg20 36848* Show two lines intersect at an atom. TODO: fix comment. (Contributed by NM, 23-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ (𝐹𝑇𝐺𝑇𝑃𝑄) ∧ ((𝑅𝐺) (𝑃 𝑄) ∧ ((𝐹‘(𝐺𝑃)) (𝐹‘(𝐺𝑄))) ≠ (𝑃 𝑄) ∧ ¬ ∃𝑟𝐴𝑟 𝑊 ∧ (𝑃 𝑟) = (𝑄 𝑟)))) → ((𝑃 (𝐹‘(𝐺𝑃))) 𝑊) = ((𝑄 (𝐹‘(𝐺𝑄))) 𝑊))

Theoremcdlemg21 36849* Version of cdlemg19 with (𝑅𝐹) (𝑃 𝑄) instead of (𝑅𝐺) (𝑃 𝑄) as a condition. (Contributed by NM, 23-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ ((𝐹𝑇𝐺𝑇) ∧ 𝑃𝑄 ∧ (𝐹𝑃) ≠ 𝑃) ∧ ((𝑅𝐹) (𝑃 𝑄) ∧ ((𝐹‘(𝐺𝑃)) (𝐹‘(𝐺𝑄))) ≠ (𝑃 𝑄) ∧ ¬ ∃𝑟𝐴𝑟 𝑊 ∧ (𝑃 𝑟) = (𝑄 𝑟)))) → ((𝑃 (𝐹‘(𝐺𝑃))) 𝑊) = ((𝑄 (𝐹‘(𝐺𝑄))) 𝑊))

Theoremcdlemg22 36850* cdlemg21 36849 with (𝐹𝑃) ≠ 𝑃 condition removed. (Contributed by NM, 23-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ (𝐹𝑇𝐺𝑇𝑃𝑄) ∧ ((𝑅𝐹) (𝑃 𝑄) ∧ ((𝐹‘(𝐺𝑃)) (𝐹‘(𝐺𝑄))) ≠ (𝑃 𝑄) ∧ ¬ ∃𝑟𝐴𝑟 𝑊 ∧ (𝑃 𝑟) = (𝑄 𝑟)))) → ((𝑃 (𝐹‘(𝐺𝑃))) 𝑊) = ((𝑄 (𝐹‘(𝐺𝑄))) 𝑊))

Theoremcdlemg24 36851* Combine cdlemg16z 36822 and cdlemg22 36850. TODO: Fix comment. (Contributed by NM, 24-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ (𝐹𝑇𝐺𝑇𝑃𝑄) ∧ (((𝐹‘(𝐺𝑃)) (𝐹‘(𝐺𝑄))) ≠ (𝑃 𝑄) ∧ ¬ ∃𝑟𝐴𝑟 𝑊 ∧ (𝑃 𝑟) = (𝑄 𝑟)))) → ((𝑃 (𝐹‘(𝐺𝑃))) 𝑊) = ((𝑄 (𝐹‘(𝐺𝑄))) 𝑊))

Theoremcdlemg37 36852* Use cdlemg8 36794 to eliminate the ≠ (𝑃 𝑄) condition of cdlemg24 36851. (Contributed by NM, 31-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ ((𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊) ∧ 𝐹𝑇) ∧ (𝐺𝑇𝑃𝑄 ∧ ¬ ∃𝑟𝐴𝑟 𝑊 ∧ (𝑃 𝑟) = (𝑄 𝑟)))) → ((𝑃 (𝐹‘(𝐺𝑃))) 𝑊) = ((𝑄 (𝐹‘(𝐺𝑄))) 𝑊))

Theoremcdlemg25zz 36853 cdlemg16zz 36823 restated for easier studying. TODO: Discard this after everything is figured out. (Contributed by NM, 26-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ ((𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑧𝐴 ∧ ¬ 𝑧 𝑊) ∧ 𝐹𝑇) ∧ (𝐺𝑇 ∧ ¬ (𝑅𝐹) (𝑃 𝑧) ∧ ¬ (𝑅𝐺) (𝑃 𝑧))) → ((𝑃 (𝐹‘(𝐺𝑃))) 𝑊) = ((𝑧 (𝐹‘(𝐺𝑧))) 𝑊))

Theoremcdlemg26zz 36854 cdlemg16zz 36823 restated for easier studying. TODO: Discard this after everything is figured out. (Contributed by NM, 26-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ ((𝑄𝐴 ∧ ¬ 𝑄 𝑊) ∧ (𝑧𝐴 ∧ ¬ 𝑧 𝑊) ∧ 𝐹𝑇) ∧ (𝐺𝑇 ∧ ¬ (𝑅𝐹) (𝑄 𝑧) ∧ ¬ (𝑅𝐺) (𝑄 𝑧))) → ((𝑄 (𝐹‘(𝐺𝑄))) 𝑊) = ((𝑧 (𝐹‘(𝐺𝑧))) 𝑊))

Theoremcdlemg27a 36855 For use with case when (𝑃 𝑣) (𝑄 (𝑅𝐹)) or (𝑃 𝑣) (𝑄 (𝑅𝐹)) is zero, letting us establish ¬ 𝑧 𝑊𝑧 (𝑃 𝑣) via 4atex 36239. TODO: Fix comment. (Contributed by NM, 28-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑣𝐴𝑣 𝑊)) ∧ (𝑧𝐴𝐹𝑇) ∧ (𝑣 ≠ (𝑅𝐹) ∧ 𝑧 (𝑃 𝑣) ∧ (𝐹𝑃) ≠ 𝑃)) → ¬ (𝑅𝐹) (𝑃 𝑧))

Theoremcdlemg28a 36856 Part of proof of Lemma G of [Crawley] p. 116. First equality of the equation of line 14 on p. 117. (Contributed by NM, 29-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑣𝐴𝑣 𝑊)) ∧ ((𝑧𝐴 ∧ ¬ 𝑧 𝑊) ∧ 𝐹𝑇𝐺𝑇) ∧ ((𝑣 ≠ (𝑅𝐹) ∧ 𝑣 ≠ (𝑅𝐺)) ∧ 𝑧 (𝑃 𝑣) ∧ ((𝐹𝑃) ≠ 𝑃 ∧ (𝐺𝑃) ≠ 𝑃))) → ((𝑃 (𝐹‘(𝐺𝑃))) 𝑊) = ((𝑧 (𝐹‘(𝐺𝑧))) 𝑊))

Theoremcdlemg31b0N 36857 TODO: Fix comment. (Contributed by NM, 30-May-2013.) (New usage is discouraged.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑁 = ((𝑃 𝑣) (𝑄 (𝑅𝐹)))       (((𝐾 ∈ HL ∧ 𝑊𝐻𝐹𝑇) ∧ ((𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ ((𝑣𝐴𝑣 𝑊) ∧ 𝑣 ≠ (𝑅𝐹) ∧ (𝐹𝑃) ≠ 𝑃)) → (𝑁𝐴𝑁 = (0.‘𝐾)))

Theoremcdlemg31b0a 36858 TODO: Fix comment. (Contributed by NM, 30-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑁 = ((𝑃 𝑣) (𝑄 (𝑅𝐹)))       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ ((𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊) ∧ (𝑣𝐴𝑣 𝑊)) ∧ (𝐹𝑇𝑣 ≠ (𝑅𝐹))) → (𝑁𝐴𝑁 = (0.‘𝐾)))

Theoremcdlemg27b 36859 TODO: Fix comment. (Contributed by NM, 28-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑁 = ((𝑃 𝑣) (𝑄 (𝑅𝐹)))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ (𝑧𝐴 ∧ (𝑣𝐴𝑣 𝑊) ∧ (𝐹𝑇𝑧𝑁)) ∧ (𝑣 ≠ (𝑅𝐹) ∧ 𝑧 (𝑃 𝑣) ∧ (𝐹𝑃) ≠ 𝑃)) → ¬ (𝑅𝐹) (𝑄 𝑧))

Theoremcdlemg31a 36860 TODO: fix comment. (Contributed by NM, 29-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑁 = ((𝑃 𝑣) (𝑄 (𝑅𝐹)))       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴𝑄𝐴) ∧ (𝑣𝐴𝐹𝑇)) → 𝑁 (𝑃 𝑣))

Theoremcdlemg31b 36861 TODO: fix comment. (Contributed by NM, 29-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑁 = ((𝑃 𝑣) (𝑄 (𝑅𝐹)))       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴𝑄𝐴) ∧ (𝑣𝐴𝐹𝑇)) → 𝑁 (𝑄 (𝑅𝐹)))

Theoremcdlemg31c 36862 Show that when 𝑁 is an atom, it is not under 𝑊. TODO: Is there a shorter direct proof? TODO: should we eliminate (𝐹𝑃) ≠ 𝑃 here? (Contributed by NM, 29-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑁 = ((𝑃 𝑣) (𝑄 (𝑅𝐹)))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ ((𝑣𝐴𝑣 𝑊) ∧ 𝐹𝑇) ∧ (𝑣 ≠ (𝑅𝐹) ∧ (𝐹𝑃) ≠ 𝑃𝑁𝐴)) → ¬ 𝑁 𝑊)

Theoremcdlemg31d 36863 Eliminate (𝐹𝑃) ≠ 𝑃 from cdlemg31c 36862. TODO: Prove directly. TODO: do we need to eliminate (𝐹𝑃) ≠ 𝑃? It might be better to do this all at once at the end. See also cdlemg29 36868 versus cdlemg28 36867. (Contributed by NM, 29-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑁 = ((𝑃 𝑣) (𝑄 (𝑅𝐹)))       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ ((𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊) ∧ (𝑣𝐴𝑣 𝑊)) ∧ (𝐹𝑇𝑣 ≠ (𝑅𝐹) ∧ 𝑁𝐴)) → ¬ 𝑁 𝑊)

Theoremcdlemg33b0 36864* TODO: Fix comment. (Contributed by NM, 30-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑁 = ((𝑃 𝑣) (𝑄 (𝑅𝐹)))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ ((𝑣𝐴𝑣 𝑊) ∧ 𝑁𝐴𝐹𝑇) ∧ (𝑃𝑄𝑣 ≠ (𝑅𝐹) ∧ ∃𝑟𝐴𝑟 𝑊 ∧ (𝑃 𝑟) = (𝑄 𝑟)))) → ∃𝑧𝐴𝑧 𝑊 ∧ (𝑧𝑁𝑧 (𝑃 𝑣))))

Theoremcdlemg33c0 36865* TODO: Fix comment. (Contributed by NM, 30-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑁 = ((𝑃 𝑣) (𝑄 (𝑅𝐹)))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ ((𝑣𝐴𝑣 𝑊) ∧ 𝐹𝑇) ∧ (𝑃𝑄𝑣 ≠ (𝑅𝐹) ∧ ∃𝑟𝐴𝑟 𝑊 ∧ (𝑃 𝑟) = (𝑄 𝑟)))) → ∃𝑧𝐴𝑧 𝑊𝑧 (𝑃 𝑣)))

Theoremcdlemg28b 36866* Part of proof of Lemma G of [Crawley] p. 116. Second equality of the equation of line 14 on p. 117. Note that ¬ 𝑧 𝑊 is redundant here (but simplifies cdlemg28 36867.) (Contributed by NM, 29-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑁 = ((𝑃 𝑣) (𝑄 (𝑅𝐹)))    &   𝑂 = ((𝑃 𝑣) (𝑄 (𝑅𝐺)))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ ((𝑣𝐴𝑣 𝑊) ∧ (𝑧𝐴 ∧ ¬ 𝑧 𝑊) ∧ (𝐹𝑇𝐺𝑇)) ∧ ((𝑧𝑁𝑧𝑂𝑧 (𝑃 𝑣)) ∧ (𝑣 ≠ (𝑅𝐹) ∧ 𝑣 ≠ (𝑅𝐺)) ∧ ((𝐹𝑃) ≠ 𝑃 ∧ (𝐺𝑃) ≠ 𝑃))) → ((𝑄 (𝐹‘(𝐺𝑄))) 𝑊) = ((𝑧 (𝐹‘(𝐺𝑧))) 𝑊))

Theoremcdlemg28 36867* Part of proof of Lemma G of [Crawley] p. 116. Chain the equalities of line 14 on p. 117. TODO: rearrange hypotheses in the order of cdlemg29 36868 (and maybe leading up to this too)? (Contributed by NM, 29-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑁 = ((𝑃 𝑣) (𝑄 (𝑅𝐹)))    &   𝑂 = ((𝑃 𝑣) (𝑄 (𝑅𝐺)))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ ((𝑣𝐴𝑣 𝑊) ∧ (𝑧𝐴 ∧ ¬ 𝑧 𝑊) ∧ (𝐹𝑇𝐺𝑇)) ∧ ((𝑧𝑁𝑧𝑂𝑧 (𝑃 𝑣)) ∧ (𝑣 ≠ (𝑅𝐹) ∧ 𝑣 ≠ (𝑅𝐺)) ∧ ((𝐹𝑃) ≠ 𝑃 ∧ (𝐺𝑃) ≠ 𝑃))) → ((𝑃 (𝐹‘(𝐺𝑃))) 𝑊) = ((𝑄 (𝐹‘(𝐺𝑄))) 𝑊))

Theoremcdlemg29 36868* Eliminate (𝐹𝑃) ≠ 𝑃 and (𝐺𝑃) ≠ 𝑃 from cdlemg28 36867. TODO: would it be better to do this later? (Contributed by NM, 29-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑁 = ((𝑃 𝑣) (𝑄 (𝑅𝐹)))    &   𝑂 = ((𝑃 𝑣) (𝑄 (𝑅𝐺)))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ ((𝑣𝐴𝑣 𝑊) ∧ (𝑧𝐴 ∧ ¬ 𝑧 𝑊) ∧ (𝐹𝑇𝐺𝑇)) ∧ ((𝑧𝑁𝑧𝑂) ∧ 𝑧 (𝑃 𝑣) ∧ (𝑣 ≠ (𝑅𝐹) ∧ 𝑣 ≠ (𝑅𝐺)))) → ((𝑃 (𝐹‘(𝐺𝑃))) 𝑊) = ((𝑄 (𝐹‘(𝐺𝑄))) 𝑊))

Theoremcdlemg33a 36869* TODO: Fix comment. (Contributed by NM, 29-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑁 = ((𝑃 𝑣) (𝑄 (𝑅𝐹)))    &   𝑂 = ((𝑃 𝑣) (𝑄 (𝑅𝐺)))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ ((𝑣𝐴𝑣 𝑊) ∧ (𝑁𝐴𝑂𝐴) ∧ (𝐹𝑇𝐺𝑇)) ∧ ((𝑃𝑄𝑁𝑂) ∧ 𝑣 ≠ (𝑅𝐹) ∧ ∃𝑟𝐴𝑟 𝑊 ∧ (𝑃 𝑟) = (𝑄 𝑟)))) → ∃𝑧𝐴𝑧 𝑊 ∧ (𝑧𝑁𝑧𝑂𝑧 (𝑃 𝑣))))

Theoremcdlemg33b 36870* TODO: Fix comment. (Contributed by NM, 30-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑁 = ((𝑃 𝑣) (𝑄 (𝑅𝐹)))    &   𝑂 = ((𝑃 𝑣) (𝑄 (𝑅𝐺)))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ ((𝑣𝐴𝑣 𝑊) ∧ (𝑁𝐴𝑂𝐴) ∧ (𝐹𝑇𝐺𝑇)) ∧ (𝑃𝑄𝑣 ≠ (𝑅𝐹) ∧ ∃𝑟𝐴𝑟 𝑊 ∧ (𝑃 𝑟) = (𝑄 𝑟)))) → ∃𝑧𝐴𝑧 𝑊 ∧ (𝑧𝑁𝑧𝑂𝑧 (𝑃 𝑣))))

Theoremcdlemg33c 36871* TODO: Fix comment. (Contributed by NM, 30-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑁 = ((𝑃 𝑣) (𝑄 (𝑅𝐹)))    &   𝑂 = ((𝑃 𝑣) (𝑄 (𝑅𝐺)))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ ((𝑣𝐴𝑣 𝑊) ∧ (𝑁𝐴𝑂 = (0.‘𝐾)) ∧ (𝐹𝑇𝐺𝑇)) ∧ (𝑃𝑄𝑣 ≠ (𝑅𝐹) ∧ ∃𝑟𝐴𝑟 𝑊 ∧ (𝑃 𝑟) = (𝑄 𝑟)))) → ∃𝑧𝐴𝑧 𝑊 ∧ (𝑧𝑁𝑧𝑂𝑧 (𝑃 𝑣))))

Theoremcdlemg33d 36872* TODO: Fix comment. (Contributed by NM, 30-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑁 = ((𝑃 𝑣) (𝑄 (𝑅𝐹)))    &   𝑂 = ((𝑃 𝑣) (𝑄 (𝑅𝐺)))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ ((𝑣𝐴𝑣 𝑊) ∧ (𝑁 = (0.‘𝐾) ∧ 𝑂𝐴) ∧ (𝐹𝑇𝐺𝑇)) ∧ (𝑃𝑄𝑣 ≠ (𝑅𝐺) ∧ ∃𝑟𝐴𝑟 𝑊 ∧ (𝑃 𝑟) = (𝑄 𝑟)))) → ∃𝑧𝐴𝑧 𝑊 ∧ (𝑧𝑁𝑧𝑂𝑧 (𝑃 𝑣))))

Theoremcdlemg33e 36873* TODO: Fix comment. (Contributed by NM, 30-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑁 = ((𝑃 𝑣) (𝑄 (𝑅𝐹)))    &   𝑂 = ((𝑃 𝑣) (𝑄 (𝑅𝐺)))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ ((𝑣𝐴𝑣 𝑊) ∧ (𝑁 = (0.‘𝐾) ∧ 𝑂 = (0.‘𝐾)) ∧ (𝐹𝑇𝐺𝑇)) ∧ (𝑃𝑄𝑣 ≠ (𝑅𝐹) ∧ ∃𝑟𝐴𝑟 𝑊 ∧ (𝑃 𝑟) = (𝑄 𝑟)))) → ∃𝑧𝐴𝑧 𝑊 ∧ (𝑧𝑁𝑧𝑂𝑧 (𝑃 𝑣))))

Theoremcdlemg33 36874* Combine cdlemg33b 36870, cdlemg33c 36871, cdlemg33d 36872, cdlemg33e 36873. TODO: Fix comment. (Contributed by NM, 30-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑁 = ((𝑃 𝑣) (𝑄 (𝑅𝐹)))    &   𝑂 = ((𝑃 𝑣) (𝑄 (𝑅𝐺)))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ ((𝑣𝐴𝑣 𝑊) ∧ (𝐹𝑇𝐺𝑇) ∧ 𝑃𝑄) ∧ (𝑣 ≠ (𝑅𝐹) ∧ 𝑣 ≠ (𝑅𝐺) ∧ ∃𝑟𝐴𝑟 𝑊 ∧ (𝑃 𝑟) = (𝑄 𝑟)))) → ∃𝑧𝐴𝑧 𝑊 ∧ (𝑧𝑁𝑧𝑂𝑧 (𝑃 𝑣))))

Theoremcdlemg34 36875* Use cdlemg33 to eliminate 𝑧 from cdlemg29 36868. TODO: Fix comment. (Contributed by NM, 31-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &   𝑁 = ((𝑃 𝑣) (𝑄 (𝑅𝐹)))    &   𝑂 = ((𝑃 𝑣) (𝑄 (𝑅𝐺)))       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ ((𝑣𝐴𝑣 𝑊) ∧ (𝐹𝑇𝐺𝑇) ∧ 𝑃𝑄) ∧ (𝑣 ≠ (𝑅𝐹) ∧ 𝑣 ≠ (𝑅𝐺) ∧ ∃𝑟𝐴𝑟 𝑊 ∧ (𝑃 𝑟) = (𝑄 𝑟)))) → ((𝑃 (𝐹‘(𝐺𝑃))) 𝑊) = ((𝑄 (𝐹‘(𝐺𝑄))) 𝑊))

Theoremcdlemg35 36876* TODO: Fix comment. TODO: should we have a more general version of hlsupr 35549 to avoid the conditions? (Contributed by NM, 31-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ ((𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ 𝐹𝑇𝐺𝑇) ∧ ((𝐹𝑃) ≠ 𝑃 ∧ (𝐺𝑃) ≠ 𝑃 ∧ (𝑅𝐹) ≠ (𝑅𝐺))) → ∃𝑣𝐴 (𝑣 𝑊 ∧ (𝑣 ≠ (𝑅𝐹) ∧ 𝑣 ≠ (𝑅𝐺))))

Theoremcdlemg36 36877* Use cdlemg35 to eliminate 𝑣 from cdlemg34 36875. TODO: Fix comment. (Contributed by NM, 31-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ (𝐹𝑇𝐺𝑇𝑃𝑄) ∧ (((𝐹𝑃) ≠ 𝑃 ∧ (𝐺𝑃) ≠ 𝑃) ∧ (𝑅𝐹) ≠ (𝑅𝐺) ∧ ∃𝑟𝐴𝑟 𝑊 ∧ (𝑃 𝑟) = (𝑄 𝑟)))) → ((𝑃 (𝐹‘(𝐺𝑃))) 𝑊) = ((𝑄 (𝐹‘(𝐺𝑄))) 𝑊))

Theoremcdlemg38 36878 Use cdlemg37 36852 to eliminate 𝑟𝐴 from cdlemg36 36877. TODO: Fix comment. (Contributed by NM, 31-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ (𝐹𝑇𝐺𝑇𝑃𝑄) ∧ (((𝐹𝑃) ≠ 𝑃 ∧ (𝐺𝑃) ≠ 𝑃) ∧ (𝑅𝐹) ≠ (𝑅𝐺))) → ((𝑃 (𝐹‘(𝐺𝑃))) 𝑊) = ((𝑄 (𝐹‘(𝐺𝑄))) 𝑊))

Theoremcdlemg39 36879 Eliminate conditions from cdlemg38 36878. TODO: Would this better be done at cdlemg35 36876? TODO: Fix comment. (Contributed by NM, 31-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ ((𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ (𝐹𝑇𝐺𝑇𝑃𝑄)) → ((𝑃 (𝐹‘(𝐺𝑃))) 𝑊) = ((𝑄 (𝐹‘(𝐺𝑄))) 𝑊))

Theoremcdlemg40 36880 Eliminate 𝑃𝑄 conditions from cdlemg39 36879. TODO: Fix comment. (Contributed by NM, 31-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ ((𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ (𝐹𝑇𝐺𝑇)) → ((𝑃 (𝐹‘(𝐺𝑃))) 𝑊) = ((𝑄 (𝐹‘(𝐺𝑄))) 𝑊))

Theoremcdlemg41 36881 Convert cdlemg40 36880 to function composition. TODO: Fix comment. (Contributed by NM, 31-May-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ ((𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝑄𝐴 ∧ ¬ 𝑄 𝑊)) ∧ (𝐹𝑇𝐺𝑇)) → ((𝑃 ((𝐹𝐺)‘𝑃)) 𝑊) = ((𝑄 ((𝐹𝐺)‘𝑄)) 𝑊))

Theoremltrnco 36882 The composition of two translations is a translation. Part of proof of Lemma G of [Crawley] p. 116, line 15 on p. 117. (Contributed by NM, 31-May-2013.)
𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇𝐺𝑇) → (𝐹𝐺) ∈ 𝑇)

Theoremtrlcocnv 36883 Swap the arguments of the trace of a composition with converse. (Contributed by NM, 1-Jul-2013.)
𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇𝐺𝑇) → (𝑅‘(𝐹𝐺)) = (𝑅‘(𝐺𝐹)))

Theoremtrlcoabs 36884 Absorption into a composition by joining with trace. (Contributed by NM, 22-Jul-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝐹𝑇𝐺𝑇) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊)) → (((𝐹𝐺)‘𝑃) (𝑅𝐹)) = ((𝐺𝑃) (𝑅𝐹)))

Theoremtrlcoabs2N 36885 Absorption of the trace of a composition. (Contributed by NM, 29-Jul-2013.) (New usage is discouraged.)
= (le‘𝐾)    &    = (join‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝐹𝑇𝐺𝑇) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊)) → ((𝐹𝑃) (𝑅‘(𝐺𝐹))) = ((𝐹𝑃) (𝐺𝑃)))

Theoremtrlcoat 36886 The trace of a composition of two translations is an atom if their traces are different. (Contributed by NM, 15-Jun-2013.)
𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝐹𝑇𝐺𝑇) ∧ (𝑅𝐹) ≠ (𝑅𝐺)) → (𝑅‘(𝐹𝐺)) ∈ 𝐴)

Theoremtrlcocnvat 36887 Commonly used special case of trlcoat 36886. (Contributed by NM, 1-Jul-2013.)
𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝐹𝑇𝐺𝑇) ∧ (𝑅𝐹) ≠ (𝑅𝐺)) → (𝑅‘(𝐹𝐺)) ∈ 𝐴)

Theoremtrlconid 36888 The composition of two different translations is not the identity translation. (Contributed by NM, 22-Jul-2013.)
𝐵 = (Base‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝐹𝑇𝐺𝑇) ∧ (𝑅𝐹) ≠ (𝑅𝐺)) → (𝐹𝐺) ≠ ( I ↾ 𝐵))

Theoremtrlcolem 36889 Lemma for trlco 36890. (Contributed by NM, 1-Jun-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &    = (meet‘𝐾)    &   𝐴 = (Atoms‘𝐾)       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝐹𝑇𝐺𝑇) ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊)) → (𝑅‘(𝐹𝐺)) ((𝑅𝐹) (𝑅𝐺)))

Theoremtrlco 36890 The trace of a composition of translations is less than or equal to the join of their traces. Part of proof of Lemma G of [Crawley] p. 116, second paragraph on p. 117. (Contributed by NM, 2-Jun-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇𝐺𝑇) → (𝑅‘(𝐹𝐺)) ((𝑅𝐹) (𝑅𝐺)))

Theoremtrlcone 36891 If two translations have different traces, the trace of their composition is also different. (Contributed by NM, 14-Jun-2013.)
𝐵 = (Base‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝐹𝑇𝐺𝑇) ∧ ((𝑅𝐹) ≠ (𝑅𝐺) ∧ 𝐺 ≠ ( I ↾ 𝐵))) → (𝑅𝐹) ≠ (𝑅‘(𝐹𝐺)))

Theoremcdlemg42 36892 Part of proof of Lemma G of [Crawley] p. 116, first line of third paragraph on p. 117. (Contributed by NM, 3-Jun-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝐹𝑇𝐺𝑇) ∧ ((𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝐺𝑃) ≠ 𝑃 ∧ (𝑅𝐹) ≠ (𝑅𝐺))) → ¬ (𝐺𝑃) (𝑃 (𝐹𝑃)))

Theoremcdlemg43 36893 Part of proof of Lemma G of [Crawley] p. 116, third line of third paragraph on p. 117. (Contributed by NM, 3-Jun-2013.)
= (le‘𝐾)    &    = (join‘𝐾)    &   𝐴 = (Atoms‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &    = (meet‘𝐾)       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝐹𝑇𝐺𝑇) ∧ ((𝑃𝐴 ∧ ¬ 𝑃 𝑊) ∧ (𝐺𝑃) ≠ 𝑃 ∧ (𝑅𝐹) ≠ (𝑅𝐺))) → (𝐹‘(𝐺𝑃)) = (((𝐺𝑃) (𝑅𝐹)) ((𝐹𝑃) (𝑅𝐺))))

Theoremcdlemg44a 36894 Part of proof of Lemma G of [Crawley] p. 116, fourth line of third paragraph on p. 117: "so fg(p) = gf(p)." (Contributed by NM, 3-Jun-2013.)
𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &    = (le‘𝐾)    &   𝐴 = (Atoms‘𝐾)       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝐹𝑇𝐺𝑇 ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊)) ∧ ((𝐹𝑃) ≠ 𝑃 ∧ (𝐺𝑃) ≠ 𝑃 ∧ (𝑅𝐹) ≠ (𝑅𝐺))) → (𝐹‘(𝐺𝑃)) = (𝐺‘(𝐹𝑃)))

Theoremcdlemg44b 36895 Eliminate (𝐹𝑃) ≠ 𝑃, (𝐺𝑃) ≠ 𝑃 from cdlemg44a 36894. (Contributed by NM, 3-Jun-2013.)
𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)    &    = (le‘𝐾)    &   𝐴 = (Atoms‘𝐾)       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝐹𝑇𝐺𝑇 ∧ (𝑃𝐴 ∧ ¬ 𝑃 𝑊)) ∧ (𝑅𝐹) ≠ (𝑅𝐺)) → (𝐹‘(𝐺𝑃)) = (𝐺‘(𝐹𝑃)))

Theoremcdlemg44 36896 Part of proof of Lemma G of [Crawley] p. 116, fifth line of third paragraph on p. 117: "and hence fg = gf." (Contributed by NM, 3-Jun-2013.)
𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝐹𝑇𝐺𝑇) ∧ (𝑅𝐹) ≠ (𝑅𝐺)) → (𝐹𝐺) = (𝐺𝐹))

Theoremcdlemg47a 36897 TODO: fix comment. TODO: Use this above in place of (𝐹𝑃) = 𝑃 antecedents? (Contributed by NM, 5-Jun-2013.)
𝐵 = (Base‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝐹𝑇𝐺𝑇) ∧ 𝐹 = ( I ↾ 𝐵)) → (𝐹𝐺) = (𝐺𝐹))

Theoremcdlemg46 36898* Part of proof of Lemma G of [Crawley] p. 116, seventh line of third paragraph on p. 117: "hf and f have different traces." (Contributed by NM, 5-Jun-2013.)
𝐵 = (Base‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝐹𝑇𝑇) ∧ (𝐹 ≠ ( I ↾ 𝐵) ∧ ≠ ( I ↾ 𝐵) ∧ (𝑅) ≠ (𝑅𝐹))) → (𝑅‘(𝐹)) ≠ (𝑅𝐹))

Theoremcdlemg47 36899* Part of proof of Lemma G of [Crawley] p. 116, ninth line of third paragraph on p. 117: "we conclude that gf = fg." (Contributed by NM, 5-Jun-2013.)
𝐵 = (Base‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝐹𝑇𝐺𝑇) ∧ (𝑇 ∧ (𝑅𝐹) = (𝑅𝐺)) ∧ (𝐹 ≠ ( I ↾ 𝐵) ∧ ≠ ( I ↾ 𝐵) ∧ (𝑅) ≠ (𝑅𝐹))) → (𝐹𝐺) = (𝐺𝐹))

Theoremcdlemg48 36900 Elmininate from cdlemg47 36899. (Contributed by NM, 5-Jun-2013.)
𝐵 = (Base‘𝐾)    &   𝐻 = (LHyp‘𝐾)    &   𝑇 = ((LTrn‘𝐾)‘𝑊)    &   𝑅 = ((trL‘𝐾)‘𝑊)       (((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ (𝐹𝑇𝐺𝑇) ∧ (𝐹 ≠ ( I ↾ 𝐵) ∧ (𝑅𝐹) = (𝑅𝐺))) → (𝐹𝐺) = (𝐺𝐹))

Page List
Jump to page: Contents  1 1-100 2 101-200 3 201-300 4 301-400 5 401-500 6 501-600 7 601-700 8 701-800 9 801-900 10 901-1000 11 1001-1100 12 1101-1200 13 1201-1300 14 1301-1400 15 1401-1500 16 1501-1600 17 1601-1700 18 1701-1800 19 1801-1900 20 1901-2000 21 2001-2100 22 2101-2200 23 2201-2300 24 2301-2400 25 2401-2500 26 2501-2600 27 2601-2700 28 2701-2800 29 2801-2900 30 2901-3000 31 3001-3100 32 3101-3200 33 3201-3300 34 3301-3400 35 3401-3500 36 3501-3600 37 3601-3700 38 3701-3800 39 3801-3900 40 3901-4000 41 4001-4100 42 4101-4200 43 4201-4300 44 4301-4400 45 4401-4500 46 4501-4600 47 4601-4700 48 4701-4800 49 4801-4900 50 4901-5000 51 5001-5100 52 5101-5200 53 5201-5300 54 5301-5400 55 5401-5500 56 5501-5600 57 5601-5700 58 5701-5800 59 5801-5900 60 5901-6000 61 6001-6100 62 6101-6200 63 6201-6300 64 6301-6400 65 6401-6500 66 6501-6600 67 6601-6700 68 6701-6800 69 6801-6900 70 6901-7000 71 7001-7100 72 7101-7200 73 7201-7300 74 7301-7400 75 7401-7500 76 7501-7600 77 7601-7700 78 7701-7800 79 7801-7900 80 7901-8000 81 8001-8100 82 8101-8200 83 8201-8300 84 8301-8400 85 8401-8500 86 8501-8600 87 8601-8700 88 8701-8800 89 8801-8900 90 8901-9000 91 9001-9100 92 9101-9200 93 9201-9300 94 9301-9400 95 9401-9500 96 9501-9600 97 9601-9700 98 9701-9800 99 9801-9900 100 9901-10000 101 10001-10100 102 10101-10200 103 10201-10300 104 10301-10400 105 10401-10500 106 10501-10600 107 10601-10700 108 10701-10800 109 10801-10900 110 10901-11000 111 11001-11100 112 11101-11200 113 11201-11300 114 11301-11400 115 11401-11500 116 11501-11600 117 11601-11700 118 11701-11800 119 11801-11900 120 11901-12000 121 12001-12100 122 12101-12200 123 12201-12300 124 12301-12400 125 12401-12500 126 12501-12600 127 12601-12700 128 12701-12800 129 12801-12900 130 12901-13000 131 13001-13100 132 13101-13200 133 13201-13300 134 13301-13400 135 13401-13500 136 13501-13600 137 13601-13700 138 13701-13800 139 13801-13900 140 13901-14000 141 14001-14100 142 14101-14200 143 14201-14300 144 14301-14400 145 14401-14500 146 14501-14600 147 14601-14700 148 14701-14800 149 14801-14900 150 14901-15000 151 15001-15100 152 15101-15200 153 15201-15300 154 15301-15400 155 15401-15500 156 15501-15600 157 15601-15700 158 15701-15800 159 15801-15900 160 15901-16000 161 16001-16100 162 16101-16200 163 16201-16300 164 16301-16400 165 16401-16500 166 16501-16600 167 16601-16700 168 16701-16800 169 16801-16900 170 16901-17000 171 17001-17100 172 17101-17200 173 17201-17300 174 17301-17400 175 17401-17500 176 17501-17600 177 17601-17700 178 17701-17800 179 17801-17900 180 17901-18000 181 18001-18100 182 18101-18200 183 18201-18300 184 18301-18400 185 18401-18500 186 18501-18600 187 18601-18700 188 18701-18800 189 18801-18900 190 18901-19000 191 19001-19100 192 19101-19200 193 19201-19300 194 19301-19400 195 19401-19500 196 19501-19600 197 19601-19700 198 19701-19800 199 19801-19900 200 19901-20000 201 20001-20100 202 20101-20200 203 20201-20300 204 20301-20400 205 20401-20500 206 20501-20600 207 20601-20700 208 20701-20800 209 20801-20900 210 20901-21000 211 21001-21100 212 21101-21200 213 21201-21300 214 21301-21400 215 21401-21500 216 21501-21600 217 21601-21700 218 21701-21800 219 21801-21900 220 21901-22000 221 22001-22100 222 22101-22200 223 22201-22300 224 22301-22400 225 22401-22500 226 22501-22600 227 22601-22700 228 22701-22800 229 22801-22900 230 22901-23000 231 23001-23100 232 23101-23200 233 23201-23300 234 23301-23400 235 23401-23500 236 23501-23600 237 23601-23700 238 23701-23800 239 23801-23900 240 23901-24000 241 24001-24100 242 24101-24200 243 24201-24300 244 24301-24400 245 24401-24500 246 24501-24600 247 24601-24700 248 24701-24800 249 24801-24900 250 24901-25000 251 25001-25100 252 25101-25200 253 25201-25300 254 25301-25400 255 25401-25500 256 25501-25600 257 25601-25700 258 25701-25800 259 25801-25900 260 25901-26000 261 26001-26100 262 26101-26200 263 26201-26300 264 26301-26400 265 26401-26500 266 26501-26600 267 26601-26700 268 26701-26800 269 26801-26900 270 26901-27000 271 27001-27100 272 27101-27200 273 27201-27300 274 27301-27400 275 27401-27500 276 27501-27600 277 27601-27700 278 27701-27800 279 27801-27900 280 27901-28000 281 28001-28100 282 28101-28200 283 28201-28300 284 28301-28400 285 28401-28500 286 28501-28600 287 28601-28700 288 28701-28800 289 28801-28900 290 28901-29000 291 29001-29100 292 29101-29200 293 29201-29300 294 29301-29400 295 29401-29500 296 29501-29600 297 29601-29700 298 29701-29800 299 29801-29900 300 29901-30000 301 30001-30100 302 30101-30200 303 30201-30300 304 30301-30400 305 30401-30500 306 30501-30600 307 30601-30700 308 30701-30800 309 30801-30900 310 30901-31000 311 31001-31100 312 31101-31200 313 31201-31300 314 31301-31400 315 31401-31500 316 31501-31600 317 31601-31700 318 31701-31800 319 31801-31900 320 31901-32000 321 32001-32100 322 32101-32200 323 32201-32300 324 32301-32400 325 32401-32500 326 32501-32600 327 32601-32700 328 32701-32800 329 32801-32900 330 32901-33000 331 33001-33100 332 33101-33200 333 33201-33300 334 33301-33400 335 33401-33500 336 33501-33600 337 33601-33700 338 33701-33800 339 33801-33900 340 33901-34000 341 34001-34100 342 34101-34200 343 34201-34300 344 34301-34400 345 34401-34500 346 34501-34600 347 34601-34700 348 34701-34800 349 34801-34900 350 34901-35000 351 35001-35100 352 35101-35200 353 35201-35300 354 35301-35400 355 35401-35500 356 35501-35600 357 35601-35700 358 35701-35800 359 35801-35900 360 35901-36000 361 36001-36100 362 36101-36200 363 36201-36300 364 36301-36400 365 36401-36500 366 36501-36600 367 36601-36700 368 36701-36800 369 36801-36900 370 36901-37000 371 37001-37100 372 37101-37200 373 37201-37300 374 37301-37400 375 37401-37500 376 37501-37600 377 37601-37700 378 37701-37800 379 37801-37900 380 37901-38000 381 38001-38100 382 38101-38200 383 38201-38300 384 38301-38400 385 38401-38500 386 38501-38600 387 38601-38700 388 38701-38800 389 38801-38900 390 38901-39000 391 39001-39100 392 39101-39200 393 39201-39300 394 39301-39400 395 39401-39500 396 39501-39600 397 39601-39700 398 39701-39800 399 39801-39900 400 39901-40000 401 40001-40100 402 40101-40200 403 40201-40300 404 40301-40400 405 40401-40500 406 40501-40600 407 40601-40700 408 40701-40800 409 40801-40900 410 40901-41000 411 41001-41100 412 41101-41200 413 41201-41300 414 41301-41400 415 41401-41500 416 41501-41600 417 41601-41700 418 41701-41800 419 41801-41900 420 41901-42000 421 42001-42100 422 42101-42200 423 42201-42300 424 42301-42400 425 42401-42500 426 42501-42600 427 42601-42700 428 42701-42800 429 42801-42900 430 42901-43000 431 43001-43100 432 43101-43200 433 43201-43300 434 43301-43400 435 43401-43500 436 43501-43600 437 43601-43671
 Copyright terms: Public domain < Previous  Next >