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| Type | Label | Description |
|---|---|---|
| Statement | ||
| Theorem | eqlkr2 39101* | Two functionals with the same kernel are the same up to a constant. (Contributed by NM, 10-Oct-2014.) |
| ⊢ 𝐷 = (Scalar‘𝑊) & ⊢ 𝐾 = (Base‘𝐷) & ⊢ · = (.r‘𝐷) & ⊢ 𝑉 = (Base‘𝑊) & ⊢ 𝐹 = (LFnl‘𝑊) & ⊢ 𝐿 = (LKer‘𝑊) ⇒ ⊢ ((𝑊 ∈ LVec ∧ (𝐺 ∈ 𝐹 ∧ 𝐻 ∈ 𝐹) ∧ (𝐿‘𝐺) = (𝐿‘𝐻)) → ∃𝑟 ∈ 𝐾 𝐻 = (𝐺 ∘f · (𝑉 × {𝑟}))) | ||
| Theorem | eqlkr3 39102 | Two functionals with the same kernel are equal if they are equal at any nonzero value. (Contributed by NM, 2-Jan-2015.) |
| ⊢ 𝑉 = (Base‘𝑊) & ⊢ 𝑆 = (Scalar‘𝑊) & ⊢ 𝑅 = (Base‘𝑆) & ⊢ 0 = (0g‘𝑆) & ⊢ 𝐹 = (LFnl‘𝑊) & ⊢ 𝐾 = (LKer‘𝑊) & ⊢ (𝜑 → 𝑊 ∈ LVec) & ⊢ (𝜑 → 𝑋 ∈ 𝑉) & ⊢ (𝜑 → 𝐺 ∈ 𝐹) & ⊢ (𝜑 → 𝐻 ∈ 𝐹) & ⊢ (𝜑 → (𝐾‘𝐺) = (𝐾‘𝐻)) & ⊢ (𝜑 → (𝐺‘𝑋) = (𝐻‘𝑋)) & ⊢ (𝜑 → (𝐺‘𝑋) ≠ 0 ) ⇒ ⊢ (𝜑 → 𝐺 = 𝐻) | ||
| Theorem | lkrlsp 39103 | The subspace sum of a kernel and the span of a vector not in the kernel (by ellkr 39090) is the whole vector space. (Contributed by NM, 19-Apr-2014.) |
| ⊢ 𝐷 = (Scalar‘𝑊) & ⊢ 0 = (0g‘𝐷) & ⊢ 𝑉 = (Base‘𝑊) & ⊢ 𝑁 = (LSpan‘𝑊) & ⊢ ⊕ = (LSSum‘𝑊) & ⊢ 𝐹 = (LFnl‘𝑊) & ⊢ 𝐾 = (LKer‘𝑊) ⇒ ⊢ ((𝑊 ∈ LVec ∧ (𝑋 ∈ 𝑉 ∧ 𝐺 ∈ 𝐹) ∧ (𝐺‘𝑋) ≠ 0 ) → ((𝐾‘𝐺) ⊕ (𝑁‘{𝑋})) = 𝑉) | ||
| Theorem | lkrlsp2 39104 | The subspace sum of a kernel and the span of a vector not in the kernel is the whole vector space. (Contributed by NM, 12-May-2014.) |
| ⊢ 𝑉 = (Base‘𝑊) & ⊢ 𝑁 = (LSpan‘𝑊) & ⊢ ⊕ = (LSSum‘𝑊) & ⊢ 𝐹 = (LFnl‘𝑊) & ⊢ 𝐾 = (LKer‘𝑊) ⇒ ⊢ ((𝑊 ∈ LVec ∧ (𝑋 ∈ 𝑉 ∧ 𝐺 ∈ 𝐹) ∧ ¬ 𝑋 ∈ (𝐾‘𝐺)) → ((𝐾‘𝐺) ⊕ (𝑁‘{𝑋})) = 𝑉) | ||
| Theorem | lkrlsp3 39105 | The subspace sum of a kernel and the span of a vector not in the kernel is the whole vector space. (Contributed by NM, 29-Jun-2014.) |
| ⊢ 𝑉 = (Base‘𝑊) & ⊢ 𝑁 = (LSpan‘𝑊) & ⊢ 𝐹 = (LFnl‘𝑊) & ⊢ 𝐾 = (LKer‘𝑊) ⇒ ⊢ ((𝑊 ∈ LVec ∧ (𝑋 ∈ 𝑉 ∧ 𝐺 ∈ 𝐹) ∧ ¬ 𝑋 ∈ (𝐾‘𝐺)) → (𝑁‘((𝐾‘𝐺) ∪ {𝑋})) = 𝑉) | ||
| Theorem | lkrshp 39106 | The kernel of a nonzero functional is a hyperplane. (Contributed by NM, 29-Jun-2014.) |
| ⊢ 𝑉 = (Base‘𝑊) & ⊢ 𝐷 = (Scalar‘𝑊) & ⊢ 0 = (0g‘𝐷) & ⊢ 𝐻 = (LSHyp‘𝑊) & ⊢ 𝐹 = (LFnl‘𝑊) & ⊢ 𝐾 = (LKer‘𝑊) ⇒ ⊢ ((𝑊 ∈ LVec ∧ 𝐺 ∈ 𝐹 ∧ 𝐺 ≠ (𝑉 × { 0 })) → (𝐾‘𝐺) ∈ 𝐻) | ||
| Theorem | lkrshp3 39107 | The kernels of nonzero functionals are hyperplanes. (Contributed by NM, 17-Jul-2014.) |
| ⊢ 𝑉 = (Base‘𝑊) & ⊢ 𝐷 = (Scalar‘𝑊) & ⊢ 0 = (0g‘𝐷) & ⊢ 𝐻 = (LSHyp‘𝑊) & ⊢ 𝐹 = (LFnl‘𝑊) & ⊢ 𝐾 = (LKer‘𝑊) & ⊢ (𝜑 → 𝑊 ∈ LVec) & ⊢ (𝜑 → 𝐺 ∈ 𝐹) ⇒ ⊢ (𝜑 → ((𝐾‘𝐺) ∈ 𝐻 ↔ 𝐺 ≠ (𝑉 × { 0 }))) | ||
| Theorem | lkrshpor 39108 | The kernel of a functional is either a hyperplane or the full vector space. (Contributed by NM, 7-Oct-2014.) |
| ⊢ 𝑉 = (Base‘𝑊) & ⊢ 𝐻 = (LSHyp‘𝑊) & ⊢ 𝐹 = (LFnl‘𝑊) & ⊢ 𝐾 = (LKer‘𝑊) & ⊢ (𝜑 → 𝑊 ∈ LVec) & ⊢ (𝜑 → 𝐺 ∈ 𝐹) ⇒ ⊢ (𝜑 → ((𝐾‘𝐺) ∈ 𝐻 ∨ (𝐾‘𝐺) = 𝑉)) | ||
| Theorem | lkrshp4 39109 | A kernel is a hyperplane iff it doesn't contain all vectors. (Contributed by NM, 1-Nov-2014.) |
| ⊢ 𝑉 = (Base‘𝑊) & ⊢ 𝐻 = (LSHyp‘𝑊) & ⊢ 𝐹 = (LFnl‘𝑊) & ⊢ 𝐾 = (LKer‘𝑊) & ⊢ (𝜑 → 𝑊 ∈ LVec) & ⊢ (𝜑 → 𝐺 ∈ 𝐹) ⇒ ⊢ (𝜑 → ((𝐾‘𝐺) ≠ 𝑉 ↔ (𝐾‘𝐺) ∈ 𝐻)) | ||
| Theorem | lshpsmreu 39110* | Lemma for lshpkrex 39119. Show uniqueness of ring multiplier 𝑘 when a vector 𝑋 is broken down into components, one in a hyperplane and the other outside of it . TODO: do we need the cbvrexv 3365 for 𝑎 to 𝑐? (Contributed by NM, 4-Jan-2015.) |
| ⊢ 𝑉 = (Base‘𝑊) & ⊢ + = (+g‘𝑊) & ⊢ 𝑁 = (LSpan‘𝑊) & ⊢ ⊕ = (LSSum‘𝑊) & ⊢ 𝐻 = (LSHyp‘𝑊) & ⊢ (𝜑 → 𝑊 ∈ LVec) & ⊢ (𝜑 → 𝑈 ∈ 𝐻) & ⊢ (𝜑 → 𝑍 ∈ 𝑉) & ⊢ (𝜑 → 𝑋 ∈ 𝑉) & ⊢ (𝜑 → (𝑈 ⊕ (𝑁‘{𝑍})) = 𝑉) & ⊢ 𝐷 = (Scalar‘𝑊) & ⊢ 𝐾 = (Base‘𝐷) & ⊢ · = ( ·𝑠 ‘𝑊) ⇒ ⊢ (𝜑 → ∃!𝑘 ∈ 𝐾 ∃𝑦 ∈ 𝑈 𝑋 = (𝑦 + (𝑘 · 𝑍))) | ||
| Theorem | lshpkrlem1 39111* | Lemma for lshpkrex 39119. The value of tentative functional 𝐺 is zero iff its argument belongs to hyperplane 𝑈. (Contributed by NM, 14-Jul-2014.) |
| ⊢ 𝑉 = (Base‘𝑊) & ⊢ + = (+g‘𝑊) & ⊢ 𝑁 = (LSpan‘𝑊) & ⊢ ⊕ = (LSSum‘𝑊) & ⊢ 𝐻 = (LSHyp‘𝑊) & ⊢ (𝜑 → 𝑊 ∈ LVec) & ⊢ (𝜑 → 𝑈 ∈ 𝐻) & ⊢ (𝜑 → 𝑍 ∈ 𝑉) & ⊢ (𝜑 → 𝑋 ∈ 𝑉) & ⊢ (𝜑 → (𝑈 ⊕ (𝑁‘{𝑍})) = 𝑉) & ⊢ 𝐷 = (Scalar‘𝑊) & ⊢ 𝐾 = (Base‘𝐷) & ⊢ · = ( ·𝑠 ‘𝑊) & ⊢ 0 = (0g‘𝐷) & ⊢ 𝐺 = (𝑥 ∈ 𝑉 ↦ (℩𝑘 ∈ 𝐾 ∃𝑦 ∈ 𝑈 𝑥 = (𝑦 + (𝑘 · 𝑍)))) ⇒ ⊢ (𝜑 → (𝑋 ∈ 𝑈 ↔ (𝐺‘𝑋) = 0 )) | ||
| Theorem | lshpkrlem2 39112* | Lemma for lshpkrex 39119. The value of tentative functional 𝐺 is a scalar. (Contributed by NM, 16-Jul-2014.) |
| ⊢ 𝑉 = (Base‘𝑊) & ⊢ + = (+g‘𝑊) & ⊢ 𝑁 = (LSpan‘𝑊) & ⊢ ⊕ = (LSSum‘𝑊) & ⊢ 𝐻 = (LSHyp‘𝑊) & ⊢ (𝜑 → 𝑊 ∈ LVec) & ⊢ (𝜑 → 𝑈 ∈ 𝐻) & ⊢ (𝜑 → 𝑍 ∈ 𝑉) & ⊢ (𝜑 → 𝑋 ∈ 𝑉) & ⊢ (𝜑 → (𝑈 ⊕ (𝑁‘{𝑍})) = 𝑉) & ⊢ 𝐷 = (Scalar‘𝑊) & ⊢ 𝐾 = (Base‘𝐷) & ⊢ · = ( ·𝑠 ‘𝑊) & ⊢ 0 = (0g‘𝐷) & ⊢ 𝐺 = (𝑥 ∈ 𝑉 ↦ (℩𝑘 ∈ 𝐾 ∃𝑦 ∈ 𝑈 𝑥 = (𝑦 + (𝑘 · 𝑍)))) ⇒ ⊢ (𝜑 → (𝐺‘𝑋) ∈ 𝐾) | ||
| Theorem | lshpkrlem3 39113* | Lemma for lshpkrex 39119. Defining property of 𝐺‘𝑋. (Contributed by NM, 15-Jul-2014.) |
| ⊢ 𝑉 = (Base‘𝑊) & ⊢ + = (+g‘𝑊) & ⊢ 𝑁 = (LSpan‘𝑊) & ⊢ ⊕ = (LSSum‘𝑊) & ⊢ 𝐻 = (LSHyp‘𝑊) & ⊢ (𝜑 → 𝑊 ∈ LVec) & ⊢ (𝜑 → 𝑈 ∈ 𝐻) & ⊢ (𝜑 → 𝑍 ∈ 𝑉) & ⊢ (𝜑 → 𝑋 ∈ 𝑉) & ⊢ (𝜑 → (𝑈 ⊕ (𝑁‘{𝑍})) = 𝑉) & ⊢ 𝐷 = (Scalar‘𝑊) & ⊢ 𝐾 = (Base‘𝐷) & ⊢ · = ( ·𝑠 ‘𝑊) & ⊢ 0 = (0g‘𝐷) & ⊢ 𝐺 = (𝑥 ∈ 𝑉 ↦ (℩𝑘 ∈ 𝐾 ∃𝑦 ∈ 𝑈 𝑥 = (𝑦 + (𝑘 · 𝑍)))) ⇒ ⊢ (𝜑 → ∃𝑧 ∈ 𝑈 𝑋 = (𝑧 + ((𝐺‘𝑋) · 𝑍))) | ||
| Theorem | lshpkrlem4 39114* | Lemma for lshpkrex 39119. Part of showing linearity of 𝐺. (Contributed by NM, 16-Jul-2014.) |
| ⊢ 𝑉 = (Base‘𝑊) & ⊢ + = (+g‘𝑊) & ⊢ 𝑁 = (LSpan‘𝑊) & ⊢ ⊕ = (LSSum‘𝑊) & ⊢ 𝐻 = (LSHyp‘𝑊) & ⊢ (𝜑 → 𝑊 ∈ LVec) & ⊢ (𝜑 → 𝑈 ∈ 𝐻) & ⊢ (𝜑 → 𝑍 ∈ 𝑉) & ⊢ (𝜑 → 𝑋 ∈ 𝑉) & ⊢ (𝜑 → (𝑈 ⊕ (𝑁‘{𝑍})) = 𝑉) & ⊢ 𝐷 = (Scalar‘𝑊) & ⊢ 𝐾 = (Base‘𝐷) & ⊢ · = ( ·𝑠 ‘𝑊) & ⊢ 0 = (0g‘𝐷) & ⊢ 𝐺 = (𝑥 ∈ 𝑉 ↦ (℩𝑘 ∈ 𝐾 ∃𝑦 ∈ 𝑈 𝑥 = (𝑦 + (𝑘 · 𝑍)))) ⇒ ⊢ (((𝜑 ∧ 𝑙 ∈ 𝐾 ∧ 𝑢 ∈ 𝑉) ∧ (𝑣 ∈ 𝑉 ∧ 𝑟 ∈ 𝑉 ∧ 𝑠 ∈ 𝑉) ∧ (𝑢 = (𝑟 + ((𝐺‘𝑢) · 𝑍)) ∧ 𝑣 = (𝑠 + ((𝐺‘𝑣) · 𝑍)))) → ((𝑙 · 𝑢) + 𝑣) = (((𝑙 · 𝑟) + 𝑠) + (((𝑙(.r‘𝐷)(𝐺‘𝑢))(+g‘𝐷)(𝐺‘𝑣)) · 𝑍))) | ||
| Theorem | lshpkrlem5 39115* | Lemma for lshpkrex 39119. Part of showing linearity of 𝐺. (Contributed by NM, 16-Jul-2014.) |
| ⊢ 𝑉 = (Base‘𝑊) & ⊢ + = (+g‘𝑊) & ⊢ 𝑁 = (LSpan‘𝑊) & ⊢ ⊕ = (LSSum‘𝑊) & ⊢ 𝐻 = (LSHyp‘𝑊) & ⊢ (𝜑 → 𝑊 ∈ LVec) & ⊢ (𝜑 → 𝑈 ∈ 𝐻) & ⊢ (𝜑 → 𝑍 ∈ 𝑉) & ⊢ (𝜑 → 𝑋 ∈ 𝑉) & ⊢ (𝜑 → (𝑈 ⊕ (𝑁‘{𝑍})) = 𝑉) & ⊢ 𝐷 = (Scalar‘𝑊) & ⊢ 𝐾 = (Base‘𝐷) & ⊢ · = ( ·𝑠 ‘𝑊) & ⊢ 0 = (0g‘𝐷) & ⊢ 𝐺 = (𝑥 ∈ 𝑉 ↦ (℩𝑘 ∈ 𝐾 ∃𝑦 ∈ 𝑈 𝑥 = (𝑦 + (𝑘 · 𝑍)))) ⇒ ⊢ (((𝜑 ∧ 𝑙 ∈ 𝐾 ∧ 𝑢 ∈ 𝑉) ∧ (𝑣 ∈ 𝑉 ∧ 𝑟 ∈ 𝑈 ∧ (𝑠 ∈ 𝑈 ∧ 𝑧 ∈ 𝑈)) ∧ (𝑢 = (𝑟 + ((𝐺‘𝑢) · 𝑍)) ∧ 𝑣 = (𝑠 + ((𝐺‘𝑣) · 𝑍)) ∧ ((𝑙 · 𝑢) + 𝑣) = (𝑧 + ((𝐺‘((𝑙 · 𝑢) + 𝑣)) · 𝑍)))) → (𝐺‘((𝑙 · 𝑢) + 𝑣)) = ((𝑙(.r‘𝐷)(𝐺‘𝑢))(+g‘𝐷)(𝐺‘𝑣))) | ||
| Theorem | lshpkrlem6 39116* | Lemma for lshpkrex 39119. Show linearlity of 𝐺. (Contributed by NM, 17-Jul-2014.) |
| ⊢ 𝑉 = (Base‘𝑊) & ⊢ + = (+g‘𝑊) & ⊢ 𝑁 = (LSpan‘𝑊) & ⊢ ⊕ = (LSSum‘𝑊) & ⊢ 𝐻 = (LSHyp‘𝑊) & ⊢ (𝜑 → 𝑊 ∈ LVec) & ⊢ (𝜑 → 𝑈 ∈ 𝐻) & ⊢ (𝜑 → 𝑍 ∈ 𝑉) & ⊢ (𝜑 → 𝑋 ∈ 𝑉) & ⊢ (𝜑 → (𝑈 ⊕ (𝑁‘{𝑍})) = 𝑉) & ⊢ 𝐷 = (Scalar‘𝑊) & ⊢ 𝐾 = (Base‘𝐷) & ⊢ · = ( ·𝑠 ‘𝑊) & ⊢ 0 = (0g‘𝐷) & ⊢ 𝐺 = (𝑥 ∈ 𝑉 ↦ (℩𝑘 ∈ 𝐾 ∃𝑦 ∈ 𝑈 𝑥 = (𝑦 + (𝑘 · 𝑍)))) ⇒ ⊢ ((𝜑 ∧ (𝑙 ∈ 𝐾 ∧ 𝑢 ∈ 𝑉 ∧ 𝑣 ∈ 𝑉)) → (𝐺‘((𝑙 · 𝑢) + 𝑣)) = ((𝑙(.r‘𝐷)(𝐺‘𝑢))(+g‘𝐷)(𝐺‘𝑣))) | ||
| Theorem | lshpkrcl 39117* | The set 𝐺 defined by hyperplane 𝑈 is a linear functional. (Contributed by NM, 17-Jul-2014.) |
| ⊢ 𝑉 = (Base‘𝑊) & ⊢ + = (+g‘𝑊) & ⊢ 𝑁 = (LSpan‘𝑊) & ⊢ ⊕ = (LSSum‘𝑊) & ⊢ 𝐻 = (LSHyp‘𝑊) & ⊢ (𝜑 → 𝑊 ∈ LVec) & ⊢ (𝜑 → 𝑈 ∈ 𝐻) & ⊢ (𝜑 → 𝑍 ∈ 𝑉) & ⊢ (𝜑 → (𝑈 ⊕ (𝑁‘{𝑍})) = 𝑉) & ⊢ 𝐷 = (Scalar‘𝑊) & ⊢ 𝐾 = (Base‘𝐷) & ⊢ · = ( ·𝑠 ‘𝑊) & ⊢ 𝐺 = (𝑥 ∈ 𝑉 ↦ (℩𝑘 ∈ 𝐾 ∃𝑦 ∈ 𝑈 𝑥 = (𝑦 + (𝑘 · 𝑍)))) & ⊢ 𝐹 = (LFnl‘𝑊) ⇒ ⊢ (𝜑 → 𝐺 ∈ 𝐹) | ||
| Theorem | lshpkr 39118* | The kernel of functional 𝐺 is the hyperplane defining it. (Contributed by NM, 17-Jul-2014.) |
| ⊢ 𝑉 = (Base‘𝑊) & ⊢ + = (+g‘𝑊) & ⊢ 𝑁 = (LSpan‘𝑊) & ⊢ ⊕ = (LSSum‘𝑊) & ⊢ 𝐻 = (LSHyp‘𝑊) & ⊢ (𝜑 → 𝑊 ∈ LVec) & ⊢ (𝜑 → 𝑈 ∈ 𝐻) & ⊢ (𝜑 → 𝑍 ∈ 𝑉) & ⊢ (𝜑 → (𝑈 ⊕ (𝑁‘{𝑍})) = 𝑉) & ⊢ 𝐷 = (Scalar‘𝑊) & ⊢ 𝐾 = (Base‘𝐷) & ⊢ · = ( ·𝑠 ‘𝑊) & ⊢ 𝐺 = (𝑥 ∈ 𝑉 ↦ (℩𝑘 ∈ 𝐾 ∃𝑦 ∈ 𝑈 𝑥 = (𝑦 + (𝑘 · 𝑍)))) & ⊢ 𝐿 = (LKer‘𝑊) ⇒ ⊢ (𝜑 → (𝐿‘𝐺) = 𝑈) | ||
| Theorem | lshpkrex 39119* | There exists a functional whose kernel equals a given hyperplane. Part of Th. 1.27 of Barbu and Precupanu, Convexity and Optimization in Banach Spaces. (Contributed by NM, 17-Jul-2014.) |
| ⊢ 𝐻 = (LSHyp‘𝑊) & ⊢ 𝐹 = (LFnl‘𝑊) & ⊢ 𝐾 = (LKer‘𝑊) ⇒ ⊢ ((𝑊 ∈ LVec ∧ 𝑈 ∈ 𝐻) → ∃𝑔 ∈ 𝐹 (𝐾‘𝑔) = 𝑈) | ||
| Theorem | lshpset2N 39120* | The set of all hyperplanes of a left module or left vector space equals the set of all kernels of nonzero functionals. (Contributed by NM, 17-Jul-2014.) (New usage is discouraged.) |
| ⊢ 𝑉 = (Base‘𝑊) & ⊢ 𝐷 = (Scalar‘𝑊) & ⊢ 0 = (0g‘𝐷) & ⊢ 𝐻 = (LSHyp‘𝑊) & ⊢ 𝐹 = (LFnl‘𝑊) & ⊢ 𝐾 = (LKer‘𝑊) ⇒ ⊢ (𝑊 ∈ LVec → 𝐻 = {𝑠 ∣ ∃𝑔 ∈ 𝐹 (𝑔 ≠ (𝑉 × { 0 }) ∧ 𝑠 = (𝐾‘𝑔))}) | ||
| Theorem | islshpkrN 39121* | The predicate "is a hyperplane" (of a left module or left vector space). TODO: should it be 𝑈 = (𝐾‘𝑔) or (𝐾‘𝑔) = 𝑈 as in lshpkrex 39119? Both standards seem to be used randomly throughout set.mm; we should decide on a preferred one. (Contributed by NM, 7-Oct-2014.) (New usage is discouraged.) |
| ⊢ 𝑉 = (Base‘𝑊) & ⊢ 𝐷 = (Scalar‘𝑊) & ⊢ 0 = (0g‘𝐷) & ⊢ 𝐻 = (LSHyp‘𝑊) & ⊢ 𝐹 = (LFnl‘𝑊) & ⊢ 𝐾 = (LKer‘𝑊) ⇒ ⊢ (𝑊 ∈ LVec → (𝑈 ∈ 𝐻 ↔ ∃𝑔 ∈ 𝐹 (𝑔 ≠ (𝑉 × { 0 }) ∧ 𝑈 = (𝐾‘𝑔)))) | ||
| Theorem | lfl1dim 39122* | Equivalent expressions for a 1-dim subspace (ray) of functionals. (Contributed by NM, 24-Oct-2014.) |
| ⊢ 𝑉 = (Base‘𝑊) & ⊢ 𝐷 = (Scalar‘𝑊) & ⊢ 𝐹 = (LFnl‘𝑊) & ⊢ 𝐿 = (LKer‘𝑊) & ⊢ 𝐾 = (Base‘𝐷) & ⊢ · = (.r‘𝐷) & ⊢ (𝜑 → 𝑊 ∈ LVec) & ⊢ (𝜑 → 𝐺 ∈ 𝐹) ⇒ ⊢ (𝜑 → {𝑔 ∈ 𝐹 ∣ (𝐿‘𝐺) ⊆ (𝐿‘𝑔)} = {𝑔 ∣ ∃𝑘 ∈ 𝐾 𝑔 = (𝐺 ∘f · (𝑉 × {𝑘}))}) | ||
| Theorem | lfl1dim2N 39123* | Equivalent expressions for a 1-dim subspace (ray) of functionals. TODO: delete this if not useful; lfl1dim 39122 may be more compatible with lspsn 21000. (Contributed by NM, 24-Oct-2014.) (New usage is discouraged.) |
| ⊢ 𝑉 = (Base‘𝑊) & ⊢ 𝐷 = (Scalar‘𝑊) & ⊢ 𝐹 = (LFnl‘𝑊) & ⊢ 𝐿 = (LKer‘𝑊) & ⊢ 𝐾 = (Base‘𝐷) & ⊢ · = (.r‘𝐷) & ⊢ (𝜑 → 𝑊 ∈ LVec) & ⊢ (𝜑 → 𝐺 ∈ 𝐹) ⇒ ⊢ (𝜑 → {𝑔 ∈ 𝐹 ∣ (𝐿‘𝐺) ⊆ (𝐿‘𝑔)} = {𝑔 ∈ 𝐹 ∣ ∃𝑘 ∈ 𝐾 𝑔 = (𝐺 ∘f · (𝑉 × {𝑘}))}) | ||
| Syntax | cld 39124 | Extend class notation with left dualvector space. |
| class LDual | ||
| Definition | df-ldual 39125* | Define the (left) dual of a left vector space (or module) in which the vectors are functionals. In many texts, this is defined as a right vector space, but by reversing the multiplication we achieve a left vector space, as is done in definition of dual vector space in [Holland95] p. 218. This allows to reuse our existing collection of left vector space theorems. The restriction on ∘f (+g‘𝑣) allows it to be a set; see ofmres 8009. Note the operation reversal in the scalar product to allow to use the original scalar ring instead of the oppr ring, for convenience. (Contributed by NM, 18-Oct-2014.) |
| ⊢ LDual = (𝑣 ∈ V ↦ ({〈(Base‘ndx), (LFnl‘𝑣)〉, 〈(+g‘ndx), ( ∘f (+g‘(Scalar‘𝑣)) ↾ ((LFnl‘𝑣) × (LFnl‘𝑣)))〉, 〈(Scalar‘ndx), (oppr‘(Scalar‘𝑣))〉} ∪ {〈( ·𝑠 ‘ndx), (𝑘 ∈ (Base‘(Scalar‘𝑣)), 𝑓 ∈ (LFnl‘𝑣) ↦ (𝑓 ∘f (.r‘(Scalar‘𝑣))((Base‘𝑣) × {𝑘})))〉})) | ||
| Theorem | ldualset 39126* | Define the (left) dual of a left vector space (or module) in which the vectors are functionals. In many texts, this is defined as a right vector space, but by reversing the multiplication we achieve a left vector space, as is done in definition of dual vector space in [Holland95] p. 218. This allows to reuse our existing collection of left vector space theorems. Note the operation reversal in the scalar product to allow to use the original scalar ring instead of the oppr ring, for convenience. (Contributed by NM, 18-Oct-2014.) |
| ⊢ 𝑉 = (Base‘𝑊) & ⊢ + = (+g‘𝑅) & ⊢ ✚ = ( ∘f + ↾ (𝐹 × 𝐹)) & ⊢ 𝐹 = (LFnl‘𝑊) & ⊢ 𝐷 = (LDual‘𝑊) & ⊢ 𝑅 = (Scalar‘𝑊) & ⊢ 𝐾 = (Base‘𝑅) & ⊢ · = (.r‘𝑅) & ⊢ 𝑂 = (oppr‘𝑅) & ⊢ ∙ = (𝑘 ∈ 𝐾, 𝑓 ∈ 𝐹 ↦ (𝑓 ∘f · (𝑉 × {𝑘}))) & ⊢ (𝜑 → 𝑊 ∈ 𝑋) ⇒ ⊢ (𝜑 → 𝐷 = ({〈(Base‘ndx), 𝐹〉, 〈(+g‘ndx), ✚ 〉, 〈(Scalar‘ndx), 𝑂〉} ∪ {〈( ·𝑠 ‘ndx), ∙ 〉})) | ||
| Theorem | ldualvbase 39127 | The vectors of a dual space are functionals of the original space. (Contributed by NM, 18-Oct-2014.) |
| ⊢ 𝐹 = (LFnl‘𝑊) & ⊢ 𝐷 = (LDual‘𝑊) & ⊢ 𝑉 = (Base‘𝐷) & ⊢ (𝜑 → 𝑊 ∈ 𝑋) ⇒ ⊢ (𝜑 → 𝑉 = 𝐹) | ||
| Theorem | ldualelvbase 39128 | Utility theorem for converting a functional to a vector of the dual space in order to use standard vector theorems. (Contributed by NM, 6-Jan-2015.) |
| ⊢ 𝐹 = (LFnl‘𝑊) & ⊢ 𝐷 = (LDual‘𝑊) & ⊢ 𝑉 = (Base‘𝐷) & ⊢ (𝜑 → 𝑊 ∈ 𝑋) & ⊢ (𝜑 → 𝐺 ∈ 𝐹) ⇒ ⊢ (𝜑 → 𝐺 ∈ 𝑉) | ||
| Theorem | ldualfvadd 39129 | Vector addition in the dual of a vector space. (Contributed by NM, 21-Oct-2014.) |
| ⊢ 𝐹 = (LFnl‘𝑊) & ⊢ 𝑅 = (Scalar‘𝑊) & ⊢ + = (+g‘𝑅) & ⊢ 𝐷 = (LDual‘𝑊) & ⊢ ✚ = (+g‘𝐷) & ⊢ (𝜑 → 𝑊 ∈ 𝑋) & ⊢ ⨣ = ( ∘f + ↾ (𝐹 × 𝐹)) ⇒ ⊢ (𝜑 → ✚ = ⨣ ) | ||
| Theorem | ldualvadd 39130 | Vector addition in the dual of a vector space. (Contributed by NM, 21-Oct-2014.) |
| ⊢ 𝐹 = (LFnl‘𝑊) & ⊢ 𝑅 = (Scalar‘𝑊) & ⊢ + = (+g‘𝑅) & ⊢ 𝐷 = (LDual‘𝑊) & ⊢ ✚ = (+g‘𝐷) & ⊢ (𝜑 → 𝑊 ∈ 𝑋) & ⊢ (𝜑 → 𝐺 ∈ 𝐹) & ⊢ (𝜑 → 𝐻 ∈ 𝐹) ⇒ ⊢ (𝜑 → (𝐺 ✚ 𝐻) = (𝐺 ∘f + 𝐻)) | ||
| Theorem | ldualvaddcl 39131 | The value of vector addition in the dual of a vector space is a functional. (Contributed by NM, 21-Oct-2014.) |
| ⊢ 𝐹 = (LFnl‘𝑊) & ⊢ 𝐷 = (LDual‘𝑊) & ⊢ + = (+g‘𝐷) & ⊢ (𝜑 → 𝑊 ∈ LMod) & ⊢ (𝜑 → 𝐺 ∈ 𝐹) & ⊢ (𝜑 → 𝐻 ∈ 𝐹) ⇒ ⊢ (𝜑 → (𝐺 + 𝐻) ∈ 𝐹) | ||
| Theorem | ldualvaddval 39132 | The value of the value of vector addition in the dual of a vector space. (Contributed by NM, 7-Jan-2015.) |
| ⊢ 𝑉 = (Base‘𝑊) & ⊢ 𝑅 = (Scalar‘𝑊) & ⊢ + = (+g‘𝑅) & ⊢ 𝐹 = (LFnl‘𝑊) & ⊢ 𝐷 = (LDual‘𝑊) & ⊢ ✚ = (+g‘𝐷) & ⊢ (𝜑 → 𝑊 ∈ LMod) & ⊢ (𝜑 → 𝐺 ∈ 𝐹) & ⊢ (𝜑 → 𝐻 ∈ 𝐹) & ⊢ (𝜑 → 𝑋 ∈ 𝑉) ⇒ ⊢ (𝜑 → ((𝐺 ✚ 𝐻)‘𝑋) = ((𝐺‘𝑋) + (𝐻‘𝑋))) | ||
| Theorem | ldualsca 39133 | The ring of scalars of the dual of a vector space. (Contributed by NM, 18-Oct-2014.) |
| ⊢ 𝐹 = (Scalar‘𝑊) & ⊢ 𝑂 = (oppr‘𝐹) & ⊢ 𝐷 = (LDual‘𝑊) & ⊢ 𝑅 = (Scalar‘𝐷) & ⊢ (𝜑 → 𝑊 ∈ 𝑋) ⇒ ⊢ (𝜑 → 𝑅 = 𝑂) | ||
| Theorem | ldualsbase 39134 | Base set of scalar ring for the dual of a vector space. (Contributed by NM, 24-Oct-2014.) |
| ⊢ 𝐹 = (Scalar‘𝑊) & ⊢ 𝐿 = (Base‘𝐹) & ⊢ 𝐷 = (LDual‘𝑊) & ⊢ 𝑅 = (Scalar‘𝐷) & ⊢ 𝐾 = (Base‘𝑅) & ⊢ (𝜑 → 𝑊 ∈ 𝑉) ⇒ ⊢ (𝜑 → 𝐾 = 𝐿) | ||
| Theorem | ldualsaddN 39135 | Scalar addition for the dual of a vector space. (Contributed by NM, 24-Oct-2014.) (New usage is discouraged.) |
| ⊢ 𝐹 = (Scalar‘𝑊) & ⊢ + = (+g‘𝐹) & ⊢ 𝐷 = (LDual‘𝑊) & ⊢ 𝑅 = (Scalar‘𝐷) & ⊢ ✚ = (+g‘𝑅) & ⊢ (𝜑 → 𝑊 ∈ 𝑉) ⇒ ⊢ (𝜑 → ✚ = + ) | ||
| Theorem | ldualsmul 39136 | Scalar multiplication for the dual of a vector space. (Contributed by NM, 19-Oct-2014.) (Revised by Mario Carneiro, 22-Sep-2015.) |
| ⊢ 𝐹 = (Scalar‘𝑊) & ⊢ 𝐾 = (Base‘𝐹) & ⊢ · = (.r‘𝐹) & ⊢ 𝐷 = (LDual‘𝑊) & ⊢ 𝑅 = (Scalar‘𝐷) & ⊢ ∙ = (.r‘𝑅) & ⊢ (𝜑 → 𝑊 ∈ 𝑉) & ⊢ (𝜑 → 𝑋 ∈ 𝐾) & ⊢ (𝜑 → 𝑌 ∈ 𝐾) ⇒ ⊢ (𝜑 → (𝑋 ∙ 𝑌) = (𝑌 · 𝑋)) | ||
| Theorem | ldualfvs 39137* | Scalar product operation for the dual of a vector space. (Contributed by NM, 18-Oct-2014.) |
| ⊢ 𝐹 = (LFnl‘𝑊) & ⊢ 𝑉 = (Base‘𝑊) & ⊢ 𝑅 = (Scalar‘𝑊) & ⊢ 𝐾 = (Base‘𝑅) & ⊢ × = (.r‘𝑅) & ⊢ 𝐷 = (LDual‘𝑊) & ⊢ ∙ = ( ·𝑠 ‘𝐷) & ⊢ (𝜑 → 𝑊 ∈ 𝑌) & ⊢ · = (𝑘 ∈ 𝐾, 𝑓 ∈ 𝐹 ↦ (𝑓 ∘f × (𝑉 × {𝑘}))) ⇒ ⊢ (𝜑 → ∙ = · ) | ||
| Theorem | ldualvs 39138 | Scalar product operation value (which is a functional) for the dual of a vector space. (Contributed by NM, 18-Oct-2014.) |
| ⊢ 𝐹 = (LFnl‘𝑊) & ⊢ 𝑉 = (Base‘𝑊) & ⊢ 𝑅 = (Scalar‘𝑊) & ⊢ 𝐾 = (Base‘𝑅) & ⊢ × = (.r‘𝑅) & ⊢ 𝐷 = (LDual‘𝑊) & ⊢ ∙ = ( ·𝑠 ‘𝐷) & ⊢ (𝜑 → 𝑊 ∈ 𝑌) & ⊢ (𝜑 → 𝑋 ∈ 𝐾) & ⊢ (𝜑 → 𝐺 ∈ 𝐹) ⇒ ⊢ (𝜑 → (𝑋 ∙ 𝐺) = (𝐺 ∘f × (𝑉 × {𝑋}))) | ||
| Theorem | ldualvsval 39139 | Value of scalar product operation value for the dual of a vector space. (Contributed by NM, 18-Oct-2014.) |
| ⊢ 𝐹 = (LFnl‘𝑊) & ⊢ 𝑉 = (Base‘𝑊) & ⊢ 𝑅 = (Scalar‘𝑊) & ⊢ 𝐾 = (Base‘𝑅) & ⊢ × = (.r‘𝑅) & ⊢ 𝐷 = (LDual‘𝑊) & ⊢ ∙ = ( ·𝑠 ‘𝐷) & ⊢ (𝜑 → 𝑊 ∈ 𝑌) & ⊢ (𝜑 → 𝑋 ∈ 𝐾) & ⊢ (𝜑 → 𝐺 ∈ 𝐹) & ⊢ (𝜑 → 𝐴 ∈ 𝑉) ⇒ ⊢ (𝜑 → ((𝑋 ∙ 𝐺)‘𝐴) = ((𝐺‘𝐴) × 𝑋)) | ||
| Theorem | ldualvscl 39140 | The scalar product operation value is a functional. (Contributed by NM, 18-Oct-2014.) |
| ⊢ 𝐹 = (LFnl‘𝑊) & ⊢ 𝑅 = (Scalar‘𝑊) & ⊢ 𝐾 = (Base‘𝑅) & ⊢ 𝐷 = (LDual‘𝑊) & ⊢ · = ( ·𝑠 ‘𝐷) & ⊢ (𝜑 → 𝑊 ∈ LMod) & ⊢ (𝜑 → 𝑋 ∈ 𝐾) & ⊢ (𝜑 → 𝐺 ∈ 𝐹) ⇒ ⊢ (𝜑 → (𝑋 · 𝐺) ∈ 𝐹) | ||
| Theorem | ldualvaddcom 39141 | Commutative law for vector (functional) addition. (Contributed by NM, 17-Jan-2015.) |
| ⊢ 𝐹 = (LFnl‘𝑊) & ⊢ 𝐷 = (LDual‘𝑊) & ⊢ + = (+g‘𝐷) & ⊢ (𝜑 → 𝑊 ∈ LMod) & ⊢ (𝜑 → 𝑋 ∈ 𝐹) & ⊢ (𝜑 → 𝑌 ∈ 𝐹) ⇒ ⊢ (𝜑 → (𝑋 + 𝑌) = (𝑌 + 𝑋)) | ||
| Theorem | ldualvsass 39142 | Associative law for scalar product operation. (Contributed by NM, 20-Oct-2014.) |
| ⊢ 𝐹 = (LFnl‘𝑊) & ⊢ 𝑅 = (Scalar‘𝑊) & ⊢ 𝐾 = (Base‘𝑅) & ⊢ × = (.r‘𝑅) & ⊢ 𝐷 = (LDual‘𝑊) & ⊢ · = ( ·𝑠 ‘𝐷) & ⊢ (𝜑 → 𝑊 ∈ LMod) & ⊢ (𝜑 → 𝑋 ∈ 𝐾) & ⊢ (𝜑 → 𝑌 ∈ 𝐾) & ⊢ (𝜑 → 𝐺 ∈ 𝐹) ⇒ ⊢ (𝜑 → ((𝑌 × 𝑋) · 𝐺) = (𝑋 · (𝑌 · 𝐺))) | ||
| Theorem | ldualvsass2 39143 | Associative law for scalar product operation, using operations from the dual space. (Contributed by NM, 20-Oct-2014.) |
| ⊢ 𝐹 = (LFnl‘𝑊) & ⊢ 𝑅 = (Scalar‘𝑊) & ⊢ 𝐾 = (Base‘𝑅) & ⊢ 𝐷 = (LDual‘𝑊) & ⊢ 𝑄 = (Scalar‘𝐷) & ⊢ × = (.r‘𝑄) & ⊢ · = ( ·𝑠 ‘𝐷) & ⊢ (𝜑 → 𝑊 ∈ LMod) & ⊢ (𝜑 → 𝑋 ∈ 𝐾) & ⊢ (𝜑 → 𝑌 ∈ 𝐾) & ⊢ (𝜑 → 𝐺 ∈ 𝐹) ⇒ ⊢ (𝜑 → ((𝑋 × 𝑌) · 𝐺) = (𝑋 · (𝑌 · 𝐺))) | ||
| Theorem | ldualvsdi1 39144 | Distributive law for scalar product operation, using operations from the dual space. (Contributed by NM, 21-Oct-2014.) |
| ⊢ 𝐹 = (LFnl‘𝑊) & ⊢ 𝑅 = (Scalar‘𝑊) & ⊢ 𝐾 = (Base‘𝑅) & ⊢ 𝐷 = (LDual‘𝑊) & ⊢ + = (+g‘𝐷) & ⊢ · = ( ·𝑠 ‘𝐷) & ⊢ (𝜑 → 𝑊 ∈ LMod) & ⊢ (𝜑 → 𝑋 ∈ 𝐾) & ⊢ (𝜑 → 𝐺 ∈ 𝐹) & ⊢ (𝜑 → 𝐻 ∈ 𝐹) ⇒ ⊢ (𝜑 → (𝑋 · (𝐺 + 𝐻)) = ((𝑋 · 𝐺) + (𝑋 · 𝐻))) | ||
| Theorem | ldualvsdi2 39145 | Reverse distributive law for scalar product operation, using operations from the dual space. (Contributed by NM, 21-Oct-2014.) |
| ⊢ 𝐹 = (LFnl‘𝑊) & ⊢ 𝑅 = (Scalar‘𝑊) & ⊢ + = (+g‘𝑅) & ⊢ 𝐾 = (Base‘𝑅) & ⊢ 𝐷 = (LDual‘𝑊) & ⊢ ✚ = (+g‘𝐷) & ⊢ · = ( ·𝑠 ‘𝐷) & ⊢ (𝜑 → 𝑊 ∈ LMod) & ⊢ (𝜑 → 𝑋 ∈ 𝐾) & ⊢ (𝜑 → 𝑌 ∈ 𝐾) & ⊢ (𝜑 → 𝐺 ∈ 𝐹) ⇒ ⊢ (𝜑 → ((𝑋 + 𝑌) · 𝐺) = ((𝑋 · 𝐺) ✚ (𝑌 · 𝐺))) | ||
| Theorem | ldualgrplem 39146 | Lemma for ldualgrp 39147. (Contributed by NM, 22-Oct-2014.) |
| ⊢ 𝐷 = (LDual‘𝑊) & ⊢ (𝜑 → 𝑊 ∈ LMod) & ⊢ 𝑉 = (Base‘𝑊) & ⊢ + = ∘f (+g‘𝑊) & ⊢ 𝐹 = (LFnl‘𝑊) & ⊢ 𝑅 = (Scalar‘𝑊) & ⊢ 𝐾 = (Base‘𝑅) & ⊢ × = (.r‘𝑅) & ⊢ 𝑂 = (oppr‘𝑅) & ⊢ · = ( ·𝑠 ‘𝐷) ⇒ ⊢ (𝜑 → 𝐷 ∈ Grp) | ||
| Theorem | ldualgrp 39147 | The dual of a vector space is a group. (Contributed by NM, 21-Oct-2014.) |
| ⊢ 𝐷 = (LDual‘𝑊) & ⊢ (𝜑 → 𝑊 ∈ LMod) ⇒ ⊢ (𝜑 → 𝐷 ∈ Grp) | ||
| Theorem | ldual0 39148 | The zero scalar of the dual of a vector space. (Contributed by NM, 28-Dec-2014.) |
| ⊢ 𝑅 = (Scalar‘𝑊) & ⊢ 0 = (0g‘𝑅) & ⊢ 𝐷 = (LDual‘𝑊) & ⊢ 𝑆 = (Scalar‘𝐷) & ⊢ 𝑂 = (0g‘𝑆) & ⊢ (𝜑 → 𝑊 ∈ LMod) ⇒ ⊢ (𝜑 → 𝑂 = 0 ) | ||
| Theorem | ldual1 39149 | The unit scalar of the dual of a vector space. (Contributed by NM, 26-Feb-2015.) |
| ⊢ 𝑅 = (Scalar‘𝑊) & ⊢ 1 = (1r‘𝑅) & ⊢ 𝐷 = (LDual‘𝑊) & ⊢ 𝑆 = (Scalar‘𝐷) & ⊢ 𝐼 = (1r‘𝑆) & ⊢ (𝜑 → 𝑊 ∈ LMod) ⇒ ⊢ (𝜑 → 𝐼 = 1 ) | ||
| Theorem | ldualneg 39150 | The negative of a scalar of the dual of a vector space. (Contributed by NM, 26-Feb-2015.) |
| ⊢ 𝑅 = (Scalar‘𝑊) & ⊢ 𝑀 = (invg‘𝑅) & ⊢ 𝐷 = (LDual‘𝑊) & ⊢ 𝑆 = (Scalar‘𝐷) & ⊢ 𝑁 = (invg‘𝑆) & ⊢ (𝜑 → 𝑊 ∈ LMod) ⇒ ⊢ (𝜑 → 𝑁 = 𝑀) | ||
| Theorem | ldual0v 39151 | The zero vector of the dual of a vector space. (Contributed by NM, 24-Oct-2014.) |
| ⊢ 𝑉 = (Base‘𝑊) & ⊢ 𝑅 = (Scalar‘𝑊) & ⊢ 0 = (0g‘𝑅) & ⊢ 𝐷 = (LDual‘𝑊) & ⊢ 𝑂 = (0g‘𝐷) & ⊢ (𝜑 → 𝑊 ∈ LMod) ⇒ ⊢ (𝜑 → 𝑂 = (𝑉 × { 0 })) | ||
| Theorem | ldual0vcl 39152 | The dual zero vector is a functional. (Contributed by NM, 5-Mar-2015.) |
| ⊢ 𝐹 = (LFnl‘𝑊) & ⊢ 𝐷 = (LDual‘𝑊) & ⊢ 0 = (0g‘𝐷) & ⊢ (𝜑 → 𝑊 ∈ LMod) ⇒ ⊢ (𝜑 → 0 ∈ 𝐹) | ||
| Theorem | lduallmodlem 39153 | Lemma for lduallmod 39154. (Contributed by NM, 22-Oct-2014.) |
| ⊢ 𝐷 = (LDual‘𝑊) & ⊢ (𝜑 → 𝑊 ∈ LMod) & ⊢ 𝑉 = (Base‘𝑊) & ⊢ + = ∘f (+g‘𝑊) & ⊢ 𝐹 = (LFnl‘𝑊) & ⊢ 𝑅 = (Scalar‘𝑊) & ⊢ 𝐾 = (Base‘𝑅) & ⊢ × = (.r‘𝑅) & ⊢ 𝑂 = (oppr‘𝑅) & ⊢ · = ( ·𝑠 ‘𝐷) ⇒ ⊢ (𝜑 → 𝐷 ∈ LMod) | ||
| Theorem | lduallmod 39154 | The dual of a left module is also a left module. (Contributed by NM, 22-Oct-2014.) |
| ⊢ 𝐷 = (LDual‘𝑊) & ⊢ (𝜑 → 𝑊 ∈ LMod) ⇒ ⊢ (𝜑 → 𝐷 ∈ LMod) | ||
| Theorem | lduallvec 39155 | The dual of a left vector space is also a left vector space. Note that scalar multiplication is reversed by df-oppr 20334; otherwise, the dual would be a right vector space as is sometimes the case in the literature. (Contributed by NM, 22-Oct-2014.) |
| ⊢ 𝐷 = (LDual‘𝑊) & ⊢ (𝜑 → 𝑊 ∈ LVec) ⇒ ⊢ (𝜑 → 𝐷 ∈ LVec) | ||
| Theorem | ldualvsub 39156 | The value of vector subtraction in the dual of a vector space. (Contributed by NM, 27-Feb-2015.) |
| ⊢ 𝑅 = (Scalar‘𝑊) & ⊢ 𝑁 = (invg‘𝑅) & ⊢ 1 = (1r‘𝑅) & ⊢ 𝐹 = (LFnl‘𝑊) & ⊢ 𝐷 = (LDual‘𝑊) & ⊢ + = (+g‘𝐷) & ⊢ · = ( ·𝑠 ‘𝐷) & ⊢ − = (-g‘𝐷) & ⊢ (𝜑 → 𝑊 ∈ LMod) & ⊢ (𝜑 → 𝐺 ∈ 𝐹) & ⊢ (𝜑 → 𝐻 ∈ 𝐹) ⇒ ⊢ (𝜑 → (𝐺 − 𝐻) = (𝐺 + ((𝑁‘ 1 ) · 𝐻))) | ||
| Theorem | ldualvsubcl 39157 | Closure of vector subtraction in the dual of a vector space. (Contributed by NM, 27-Feb-2015.) |
| ⊢ 𝐹 = (LFnl‘𝑊) & ⊢ 𝐷 = (LDual‘𝑊) & ⊢ − = (-g‘𝐷) & ⊢ (𝜑 → 𝑊 ∈ LMod) & ⊢ (𝜑 → 𝐺 ∈ 𝐹) & ⊢ (𝜑 → 𝐻 ∈ 𝐹) ⇒ ⊢ (𝜑 → (𝐺 − 𝐻) ∈ 𝐹) | ||
| Theorem | ldualvsubval 39158 | The value of the value of vector subtraction in the dual of a vector space. TODO: shorten with ldualvsub 39156? (Requires 𝐷 to oppr conversion.) (Contributed by NM, 26-Feb-2015.) |
| ⊢ 𝑉 = (Base‘𝑊) & ⊢ 𝑅 = (Scalar‘𝑊) & ⊢ 𝑆 = (-g‘𝑅) & ⊢ 𝐹 = (LFnl‘𝑊) & ⊢ 𝐷 = (LDual‘𝑊) & ⊢ − = (-g‘𝐷) & ⊢ (𝜑 → 𝑊 ∈ LMod) & ⊢ (𝜑 → 𝐺 ∈ 𝐹) & ⊢ (𝜑 → 𝐻 ∈ 𝐹) & ⊢ (𝜑 → 𝑋 ∈ 𝑉) ⇒ ⊢ (𝜑 → ((𝐺 − 𝐻)‘𝑋) = ((𝐺‘𝑋)𝑆(𝐻‘𝑋))) | ||
| Theorem | ldualssvscl 39159 | Closure of scalar product in a dual subspace.) (Contributed by NM, 5-Feb-2015.) |
| ⊢ 𝑅 = (Scalar‘𝑊) & ⊢ 𝐾 = (Base‘𝑅) & ⊢ 𝐷 = (LDual‘𝑊) & ⊢ · = ( ·𝑠 ‘𝐷) & ⊢ 𝑆 = (LSubSp‘𝐷) & ⊢ (𝜑 → 𝑊 ∈ LMod) & ⊢ (𝜑 → 𝑈 ∈ 𝑆) & ⊢ (𝜑 → 𝑋 ∈ 𝐾) & ⊢ (𝜑 → 𝑌 ∈ 𝑈) ⇒ ⊢ (𝜑 → (𝑋 · 𝑌) ∈ 𝑈) | ||
| Theorem | ldualssvsubcl 39160 | Closure of vector subtraction in a dual subspace.) (Contributed by NM, 9-Mar-2015.) |
| ⊢ 𝐷 = (LDual‘𝑊) & ⊢ − = (-g‘𝐷) & ⊢ 𝑆 = (LSubSp‘𝐷) & ⊢ (𝜑 → 𝑊 ∈ LMod) & ⊢ (𝜑 → 𝑈 ∈ 𝑆) & ⊢ (𝜑 → 𝑋 ∈ 𝑈) & ⊢ (𝜑 → 𝑌 ∈ 𝑈) ⇒ ⊢ (𝜑 → (𝑋 − 𝑌) ∈ 𝑈) | ||
| Theorem | ldual0vs 39161 | Scalar zero times a functional is the zero functional. (Contributed by NM, 17-Feb-2015.) |
| ⊢ 𝐹 = (LFnl‘𝑊) & ⊢ 𝑅 = (Scalar‘𝑊) & ⊢ 0 = (0g‘𝑅) & ⊢ 𝐷 = (LDual‘𝑊) & ⊢ · = ( ·𝑠 ‘𝐷) & ⊢ 𝑂 = (0g‘𝐷) & ⊢ (𝜑 → 𝑊 ∈ LMod) & ⊢ (𝜑 → 𝐺 ∈ 𝐹) ⇒ ⊢ (𝜑 → ( 0 · 𝐺) = 𝑂) | ||
| Theorem | lkr0f2 39162 | The kernel of the zero functional is the set of all vectors. (Contributed by NM, 4-Feb-2015.) |
| ⊢ 𝑉 = (Base‘𝑊) & ⊢ 𝐹 = (LFnl‘𝑊) & ⊢ 𝐾 = (LKer‘𝑊) & ⊢ 𝐷 = (LDual‘𝑊) & ⊢ 0 = (0g‘𝐷) & ⊢ (𝜑 → 𝑊 ∈ LMod) & ⊢ (𝜑 → 𝐺 ∈ 𝐹) ⇒ ⊢ (𝜑 → ((𝐾‘𝐺) = 𝑉 ↔ 𝐺 = 0 )) | ||
| Theorem | lduallkr3 39163 | The kernels of nonzero functionals are hyperplanes. (Contributed by NM, 22-Feb-2015.) |
| ⊢ 𝐻 = (LSHyp‘𝑊) & ⊢ 𝐹 = (LFnl‘𝑊) & ⊢ 𝐾 = (LKer‘𝑊) & ⊢ 𝐷 = (LDual‘𝑊) & ⊢ 0 = (0g‘𝐷) & ⊢ (𝜑 → 𝑊 ∈ LVec) & ⊢ (𝜑 → 𝐺 ∈ 𝐹) ⇒ ⊢ (𝜑 → ((𝐾‘𝐺) ∈ 𝐻 ↔ 𝐺 ≠ 0 )) | ||
| Theorem | lkrpssN 39164 | Proper subset relation between kernels. (Contributed by NM, 16-Feb-2015.) (New usage is discouraged.) |
| ⊢ 𝐹 = (LFnl‘𝑊) & ⊢ 𝐾 = (LKer‘𝑊) & ⊢ 𝐷 = (LDual‘𝑊) & ⊢ 0 = (0g‘𝐷) & ⊢ (𝜑 → 𝑊 ∈ LVec) & ⊢ (𝜑 → 𝐺 ∈ 𝐹) & ⊢ (𝜑 → 𝐻 ∈ 𝐹) ⇒ ⊢ (𝜑 → ((𝐾‘𝐺) ⊊ (𝐾‘𝐻) ↔ (𝐺 ≠ 0 ∧ 𝐻 = 0 ))) | ||
| Theorem | lkrin 39165 | Intersection of the kernels of 2 functionals is included in the kernel of their sum. (Contributed by NM, 7-Jan-2015.) |
| ⊢ 𝐹 = (LFnl‘𝑊) & ⊢ 𝐾 = (LKer‘𝑊) & ⊢ 𝐷 = (LDual‘𝑊) & ⊢ + = (+g‘𝐷) & ⊢ (𝜑 → 𝑊 ∈ LMod) & ⊢ (𝜑 → 𝐺 ∈ 𝐹) & ⊢ (𝜑 → 𝐻 ∈ 𝐹) ⇒ ⊢ (𝜑 → ((𝐾‘𝐺) ∩ (𝐾‘𝐻)) ⊆ (𝐾‘(𝐺 + 𝐻))) | ||
| Theorem | eqlkr4 39166* | Two functionals with the same kernel are the same up to a constant. (Contributed by NM, 4-Feb-2015.) |
| ⊢ 𝑆 = (Scalar‘𝑊) & ⊢ 𝑅 = (Base‘𝑆) & ⊢ 𝐹 = (LFnl‘𝑊) & ⊢ 𝐾 = (LKer‘𝑊) & ⊢ 𝐷 = (LDual‘𝑊) & ⊢ · = ( ·𝑠 ‘𝐷) & ⊢ (𝜑 → 𝑊 ∈ LVec) & ⊢ (𝜑 → 𝐺 ∈ 𝐹) & ⊢ (𝜑 → 𝐻 ∈ 𝐹) & ⊢ (𝜑 → (𝐾‘𝐺) = (𝐾‘𝐻)) ⇒ ⊢ (𝜑 → ∃𝑟 ∈ 𝑅 𝐻 = (𝑟 · 𝐺)) | ||
| Theorem | ldual1dim 39167* | Equivalent expressions for a 1-dim subspace (ray) of functionals. (Contributed by NM, 24-Oct-2014.) |
| ⊢ 𝐹 = (LFnl‘𝑊) & ⊢ 𝐿 = (LKer‘𝑊) & ⊢ 𝐷 = (LDual‘𝑊) & ⊢ 𝑁 = (LSpan‘𝐷) & ⊢ (𝜑 → 𝑊 ∈ LVec) & ⊢ (𝜑 → 𝐺 ∈ 𝐹) ⇒ ⊢ (𝜑 → (𝑁‘{𝐺}) = {𝑔 ∈ 𝐹 ∣ (𝐿‘𝐺) ⊆ (𝐿‘𝑔)}) | ||
| Theorem | ldualkrsc 39168 | The kernel of a nonzero scalar product of a functional equals the kernel of the functional. (Contributed by NM, 28-Dec-2014.) |
| ⊢ 𝑅 = (Scalar‘𝑊) & ⊢ 𝐾 = (Base‘𝑅) & ⊢ 0 = (0g‘𝑅) & ⊢ 𝐹 = (LFnl‘𝑊) & ⊢ 𝐿 = (LKer‘𝑊) & ⊢ 𝐷 = (LDual‘𝑊) & ⊢ · = ( ·𝑠 ‘𝐷) & ⊢ (𝜑 → 𝑊 ∈ LVec) & ⊢ (𝜑 → 𝐺 ∈ 𝐹) & ⊢ (𝜑 → 𝑋 ∈ 𝐾) & ⊢ (𝜑 → 𝑋 ≠ 0 ) ⇒ ⊢ (𝜑 → (𝐿‘(𝑋 · 𝐺)) = (𝐿‘𝐺)) | ||
| Theorem | lkrss 39169 | The kernel of a scalar product of a functional includes the kernel of the functional. (Contributed by NM, 27-Jan-2015.) |
| ⊢ 𝑅 = (Scalar‘𝑊) & ⊢ 𝐾 = (Base‘𝑅) & ⊢ 𝐹 = (LFnl‘𝑊) & ⊢ 𝐿 = (LKer‘𝑊) & ⊢ 𝐷 = (LDual‘𝑊) & ⊢ · = ( ·𝑠 ‘𝐷) & ⊢ (𝜑 → 𝑊 ∈ LVec) & ⊢ (𝜑 → 𝐺 ∈ 𝐹) & ⊢ (𝜑 → 𝑋 ∈ 𝐾) ⇒ ⊢ (𝜑 → (𝐿‘𝐺) ⊆ (𝐿‘(𝑋 · 𝐺))) | ||
| Theorem | lkrss2N 39170* | Two functionals with kernels in a subset relationship. (Contributed by NM, 17-Feb-2015.) (New usage is discouraged.) |
| ⊢ 𝑆 = (Scalar‘𝑊) & ⊢ 𝑅 = (Base‘𝑆) & ⊢ 𝐹 = (LFnl‘𝑊) & ⊢ 𝐾 = (LKer‘𝑊) & ⊢ 𝐷 = (LDual‘𝑊) & ⊢ · = ( ·𝑠 ‘𝐷) & ⊢ (𝜑 → 𝑊 ∈ LVec) & ⊢ (𝜑 → 𝐺 ∈ 𝐹) & ⊢ (𝜑 → 𝐻 ∈ 𝐹) ⇒ ⊢ (𝜑 → ((𝐾‘𝐺) ⊆ (𝐾‘𝐻) ↔ ∃𝑟 ∈ 𝑅 𝐻 = (𝑟 · 𝐺))) | ||
| Theorem | lkreqN 39171 | Proportional functionals have equal kernels. (Contributed by NM, 28-Mar-2015.) (New usage is discouraged.) |
| ⊢ 𝑆 = (Scalar‘𝑊) & ⊢ 𝑅 = (Base‘𝑆) & ⊢ 0 = (0g‘𝑆) & ⊢ 𝐹 = (LFnl‘𝑊) & ⊢ 𝐾 = (LKer‘𝑊) & ⊢ 𝐷 = (LDual‘𝑊) & ⊢ · = ( ·𝑠 ‘𝐷) & ⊢ (𝜑 → 𝑊 ∈ LVec) & ⊢ (𝜑 → 𝐴 ∈ (𝑅 ∖ { 0 })) & ⊢ (𝜑 → 𝐻 ∈ 𝐹) & ⊢ (𝜑 → 𝐺 = (𝐴 · 𝐻)) ⇒ ⊢ (𝜑 → (𝐾‘𝐺) = (𝐾‘𝐻)) | ||
| Theorem | lkrlspeqN 39172 | Condition for colinear functionals to have equal kernels. (Contributed by NM, 20-Mar-2015.) (New usage is discouraged.) |
| ⊢ 𝐹 = (LFnl‘𝑊) & ⊢ 𝐿 = (LKer‘𝑊) & ⊢ 𝐷 = (LDual‘𝑊) & ⊢ 0 = (0g‘𝐷) & ⊢ 𝑁 = (LSpan‘𝐷) & ⊢ (𝜑 → 𝑊 ∈ LVec) & ⊢ (𝜑 → 𝐻 ∈ 𝐹) & ⊢ (𝜑 → 𝐺 ∈ ((𝑁‘{𝐻}) ∖ { 0 })) ⇒ ⊢ (𝜑 → (𝐿‘𝐺) = (𝐿‘𝐻)) | ||
| Syntax | cops 39173 | Extend class notation with orthoposets. |
| class OP | ||
| Syntax | ccmtN 39174 | Extend class notation with the commutes relation. |
| class cm | ||
| Syntax | col 39175 | Extend class notation with orthlattices. |
| class OL | ||
| Syntax | coml 39176 | Extend class notation with orthomodular lattices. |
| class OML | ||
| Definition | df-oposet 39177* | Define the class of orthoposets, which are bounded posets with an orthocomplementation operation. Note that (Base p ) e. dom ( lub 𝑝) means there is an upper bound 1., and similarly for the 0. element. (Contributed by NM, 20-Oct-2011.) (Revised by NM, 13-Sep-2018.) |
| ⊢ OP = {𝑝 ∈ Poset ∣ (((Base‘𝑝) ∈ dom (lub‘𝑝) ∧ (Base‘𝑝) ∈ dom (glb‘𝑝)) ∧ ∃𝑜(𝑜 = (oc‘𝑝) ∧ ∀𝑎 ∈ (Base‘𝑝)∀𝑏 ∈ (Base‘𝑝)(((𝑜‘𝑎) ∈ (Base‘𝑝) ∧ (𝑜‘(𝑜‘𝑎)) = 𝑎 ∧ (𝑎(le‘𝑝)𝑏 → (𝑜‘𝑏)(le‘𝑝)(𝑜‘𝑎))) ∧ (𝑎(join‘𝑝)(𝑜‘𝑎)) = (1.‘𝑝) ∧ (𝑎(meet‘𝑝)(𝑜‘𝑎)) = (0.‘𝑝))))} | ||
| Definition | df-cmtN 39178* | Define the commutes relation for orthoposets. Definition of commutes in [Kalmbach] p. 20. (Contributed by NM, 6-Nov-2011.) |
| ⊢ cm = (𝑝 ∈ V ↦ {〈𝑥, 𝑦〉 ∣ (𝑥 ∈ (Base‘𝑝) ∧ 𝑦 ∈ (Base‘𝑝) ∧ 𝑥 = ((𝑥(meet‘𝑝)𝑦)(join‘𝑝)(𝑥(meet‘𝑝)((oc‘𝑝)‘𝑦))))}) | ||
| Definition | df-ol 39179 | Define the class of ortholattices. Definition from [Kalmbach] p. 16. (Contributed by NM, 18-Sep-2011.) |
| ⊢ OL = (Lat ∩ OP) | ||
| Definition | df-oml 39180* | Define the class of orthomodular lattices. Definition from [Kalmbach] p. 16. (Contributed by NM, 18-Sep-2011.) |
| ⊢ OML = {𝑙 ∈ OL ∣ ∀𝑎 ∈ (Base‘𝑙)∀𝑏 ∈ (Base‘𝑙)(𝑎(le‘𝑙)𝑏 → 𝑏 = (𝑎(join‘𝑙)(𝑏(meet‘𝑙)((oc‘𝑙)‘𝑎))))} | ||
| Theorem | isopos 39181* | The predicate "is an orthoposet." (Contributed by NM, 20-Oct-2011.) (Revised by NM, 14-Sep-2018.) |
| ⊢ 𝐵 = (Base‘𝐾) & ⊢ 𝑈 = (lub‘𝐾) & ⊢ 𝐺 = (glb‘𝐾) & ⊢ ≤ = (le‘𝐾) & ⊢ ⊥ = (oc‘𝐾) & ⊢ ∨ = (join‘𝐾) & ⊢ ∧ = (meet‘𝐾) & ⊢ 0 = (0.‘𝐾) & ⊢ 1 = (1.‘𝐾) ⇒ ⊢ (𝐾 ∈ OP ↔ ((𝐾 ∈ Poset ∧ 𝐵 ∈ dom 𝑈 ∧ 𝐵 ∈ dom 𝐺) ∧ ∀𝑥 ∈ 𝐵 ∀𝑦 ∈ 𝐵 ((( ⊥ ‘𝑥) ∈ 𝐵 ∧ ( ⊥ ‘( ⊥ ‘𝑥)) = 𝑥 ∧ (𝑥 ≤ 𝑦 → ( ⊥ ‘𝑦) ≤ ( ⊥ ‘𝑥))) ∧ (𝑥 ∨ ( ⊥ ‘𝑥)) = 1 ∧ (𝑥 ∧ ( ⊥ ‘𝑥)) = 0 ))) | ||
| Theorem | opposet 39182 | Every orthoposet is a poset. (Contributed by NM, 12-Oct-2011.) |
| ⊢ (𝐾 ∈ OP → 𝐾 ∈ Poset) | ||
| Theorem | oposlem 39183 | Lemma for orthoposet properties. (Contributed by NM, 20-Oct-2011.) |
| ⊢ 𝐵 = (Base‘𝐾) & ⊢ ≤ = (le‘𝐾) & ⊢ ⊥ = (oc‘𝐾) & ⊢ ∨ = (join‘𝐾) & ⊢ ∧ = (meet‘𝐾) & ⊢ 0 = (0.‘𝐾) & ⊢ 1 = (1.‘𝐾) ⇒ ⊢ ((𝐾 ∈ OP ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → ((( ⊥ ‘𝑋) ∈ 𝐵 ∧ ( ⊥ ‘( ⊥ ‘𝑋)) = 𝑋 ∧ (𝑋 ≤ 𝑌 → ( ⊥ ‘𝑌) ≤ ( ⊥ ‘𝑋))) ∧ (𝑋 ∨ ( ⊥ ‘𝑋)) = 1 ∧ (𝑋 ∧ ( ⊥ ‘𝑋)) = 0 )) | ||
| Theorem | op01dm 39184 | Conditions necessary for zero and unity elements to exist. (Contributed by NM, 14-Sep-2018.) |
| ⊢ 𝐵 = (Base‘𝐾) & ⊢ 𝑈 = (lub‘𝐾) & ⊢ 𝐺 = (glb‘𝐾) ⇒ ⊢ (𝐾 ∈ OP → (𝐵 ∈ dom 𝑈 ∧ 𝐵 ∈ dom 𝐺)) | ||
| Theorem | op0cl 39185 | An orthoposet has a zero element. (h0elch 31274 analog.) (Contributed by NM, 12-Oct-2011.) |
| ⊢ 𝐵 = (Base‘𝐾) & ⊢ 0 = (0.‘𝐾) ⇒ ⊢ (𝐾 ∈ OP → 0 ∈ 𝐵) | ||
| Theorem | op1cl 39186 | An orthoposet has a unity element. (helch 31262 analog.) (Contributed by NM, 22-Oct-2011.) |
| ⊢ 𝐵 = (Base‘𝐾) & ⊢ 1 = (1.‘𝐾) ⇒ ⊢ (𝐾 ∈ OP → 1 ∈ 𝐵) | ||
| Theorem | op0le 39187 | Orthoposet zero is less than or equal to any element. (ch0le 31460 analog.) (Contributed by NM, 12-Oct-2011.) |
| ⊢ 𝐵 = (Base‘𝐾) & ⊢ ≤ = (le‘𝐾) & ⊢ 0 = (0.‘𝐾) ⇒ ⊢ ((𝐾 ∈ OP ∧ 𝑋 ∈ 𝐵) → 0 ≤ 𝑋) | ||
| Theorem | ople0 39188 | An element less than or equal to zero equals zero. (chle0 31462 analog.) (Contributed by NM, 21-Oct-2011.) |
| ⊢ 𝐵 = (Base‘𝐾) & ⊢ ≤ = (le‘𝐾) & ⊢ 0 = (0.‘𝐾) ⇒ ⊢ ((𝐾 ∈ OP ∧ 𝑋 ∈ 𝐵) → (𝑋 ≤ 0 ↔ 𝑋 = 0 )) | ||
| Theorem | opnlen0 39189 | An element not less than another is nonzero. TODO: Look for uses of necon3bd 2954 and op0le 39187 to see if this is useful elsewhere. (Contributed by NM, 5-May-2013.) |
| ⊢ 𝐵 = (Base‘𝐾) & ⊢ ≤ = (le‘𝐾) & ⊢ 0 = (0.‘𝐾) ⇒ ⊢ (((𝐾 ∈ OP ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ ¬ 𝑋 ≤ 𝑌) → 𝑋 ≠ 0 ) | ||
| Theorem | lub0N 39190 | The least upper bound of the empty set is the zero element. (Contributed by NM, 15-Sep-2013.) (New usage is discouraged.) |
| ⊢ 1 = (lub‘𝐾) & ⊢ 0 = (0.‘𝐾) ⇒ ⊢ (𝐾 ∈ OP → ( 1 ‘∅) = 0 ) | ||
| Theorem | opltn0 39191 | A lattice element greater than zero is nonzero. TODO: is this needed? (Contributed by NM, 1-Jun-2012.) |
| ⊢ 𝐵 = (Base‘𝐾) & ⊢ < = (lt‘𝐾) & ⊢ 0 = (0.‘𝐾) ⇒ ⊢ ((𝐾 ∈ OP ∧ 𝑋 ∈ 𝐵) → ( 0 < 𝑋 ↔ 𝑋 ≠ 0 )) | ||
| Theorem | ople1 39192 | Any element is less than the orthoposet unity. (chss 31248 analog.) (Contributed by NM, 23-Oct-2011.) |
| ⊢ 𝐵 = (Base‘𝐾) & ⊢ ≤ = (le‘𝐾) & ⊢ 1 = (1.‘𝐾) ⇒ ⊢ ((𝐾 ∈ OP ∧ 𝑋 ∈ 𝐵) → 𝑋 ≤ 1 ) | ||
| Theorem | op1le 39193 | If the orthoposet unity is less than or equal to an element, the element equals the unit. (chle0 31462 analog.) (Contributed by NM, 5-Dec-2011.) |
| ⊢ 𝐵 = (Base‘𝐾) & ⊢ ≤ = (le‘𝐾) & ⊢ 1 = (1.‘𝐾) ⇒ ⊢ ((𝐾 ∈ OP ∧ 𝑋 ∈ 𝐵) → ( 1 ≤ 𝑋 ↔ 𝑋 = 1 )) | ||
| Theorem | glb0N 39194 | The greatest lower bound of the empty set is the unity element. (Contributed by NM, 5-Dec-2011.) (New usage is discouraged.) |
| ⊢ 𝐺 = (glb‘𝐾) & ⊢ 1 = (1.‘𝐾) ⇒ ⊢ (𝐾 ∈ OP → (𝐺‘∅) = 1 ) | ||
| Theorem | opoccl 39195 | Closure of orthocomplement operation. (choccl 31325 analog.) (Contributed by NM, 20-Oct-2011.) |
| ⊢ 𝐵 = (Base‘𝐾) & ⊢ ⊥ = (oc‘𝐾) ⇒ ⊢ ((𝐾 ∈ OP ∧ 𝑋 ∈ 𝐵) → ( ⊥ ‘𝑋) ∈ 𝐵) | ||
| Theorem | opococ 39196 | Double negative law for orthoposets. (ococ 31425 analog.) (Contributed by NM, 13-Sep-2011.) |
| ⊢ 𝐵 = (Base‘𝐾) & ⊢ ⊥ = (oc‘𝐾) ⇒ ⊢ ((𝐾 ∈ OP ∧ 𝑋 ∈ 𝐵) → ( ⊥ ‘( ⊥ ‘𝑋)) = 𝑋) | ||
| Theorem | opcon3b 39197 | Contraposition law for orthoposets. (chcon3i 31485 analog.) (Contributed by NM, 8-Nov-2011.) |
| ⊢ 𝐵 = (Base‘𝐾) & ⊢ ⊥ = (oc‘𝐾) ⇒ ⊢ ((𝐾 ∈ OP ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → (𝑋 = 𝑌 ↔ ( ⊥ ‘𝑌) = ( ⊥ ‘𝑋))) | ||
| Theorem | opcon2b 39198 | Orthocomplement contraposition law. (negcon2 11562 analog.) (Contributed by NM, 16-Jan-2012.) |
| ⊢ 𝐵 = (Base‘𝐾) & ⊢ ⊥ = (oc‘𝐾) ⇒ ⊢ ((𝐾 ∈ OP ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → (𝑋 = ( ⊥ ‘𝑌) ↔ 𝑌 = ( ⊥ ‘𝑋))) | ||
| Theorem | opcon1b 39199 | Orthocomplement contraposition law. (negcon1 11561 analog.) (Contributed by NM, 24-Jan-2012.) |
| ⊢ 𝐵 = (Base‘𝐾) & ⊢ ⊥ = (oc‘𝐾) ⇒ ⊢ ((𝐾 ∈ OP ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → (( ⊥ ‘𝑋) = 𝑌 ↔ ( ⊥ ‘𝑌) = 𝑋)) | ||
| Theorem | oplecon3 39200 | Contraposition law for orthoposets. (Contributed by NM, 13-Sep-2011.) |
| ⊢ 𝐵 = (Base‘𝐾) & ⊢ ≤ = (le‘𝐾) & ⊢ ⊥ = (oc‘𝐾) ⇒ ⊢ ((𝐾 ∈ OP ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → (𝑋 ≤ 𝑌 → ( ⊥ ‘𝑌) ≤ ( ⊥ ‘𝑋))) | ||
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