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Type | Label | Description |
---|---|---|
Statement | ||
Theorem | lkrshp 36401 | 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 36402 | 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 36403 | 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 36404 | 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 36405* | Lemma for lshpkrex 36414. 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 3400 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 36406* | Lemma for lshpkrex 36414. 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 36407* | Lemma for lshpkrex 36414. 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 36408* | Lemma for lshpkrex 36414. 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 36409* | Lemma for lshpkrex 36414. 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 36410* | Lemma for lshpkrex 36414. 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 36411* | Lemma for lshpkrex 36414. 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 36412* | 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 36413* | 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 36414* | 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 36415* | 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 36416* | 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 36414? 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 36417* | 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 36418* | Equivalent expressions for a 1-dim subspace (ray) of functionals. TODO: delete this if not useful; lfl1dim 36417 may be more compatible with lspsn 19767. (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 36419 | Extend class notation with left dualvector space. |
class LDual | ||
Definition | df-ldual 36420* | 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 us to reuse our existing collection of left vector space theorems. The restriction on ∘f (+g‘𝑣) allows it to be a set; see ofmres 7667. Note the operation reversal in the scalar product to allow us 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 36421* | 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 us to reuse our existing collection of left vector space theorems. Note the operation reversal in the scalar product to allow us 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 36422 | 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 36423 | 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 36424 | 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 36425 | 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 36426 | 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 36427 | 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 36428 | 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 36429 | 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 36430 | 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 36431 | 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 36432* | 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 36433 | 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 36434 | 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 36435 | 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 36436 | 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 36437 | 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 36438 | 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 36439 | 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 36440 | 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 36441 | Lemma for ldualgrp 36442. (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 36442 | 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 36443 | 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 36444 | 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 36445 | 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 36446 | 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 36447 | 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 36448 | Lemma for lduallmod 36449. (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 36449 | 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 36450 | The dual of a left vector space is also a left vector space. Note that scalar multiplication is reversed by df-oppr 19369; 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 36451 | 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 36452 | 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 36453 | The value of the value of vector subtraction in the dual of a vector space. TODO: shorten with ldualvsub 36451? (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 36454 | 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 36455 | 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 36456 | 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 36457 | 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 36458 | 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 36459 | 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 36460 | 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 36461* | 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 36462* | 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 36463 | 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 36464 | 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 36465* | 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 36466 | 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 36467 | 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 36468 | Extend class notation with orthoposets. |
class OP | ||
Syntax | ccmtN 36469 | Extend class notation with the commutes relation. |
class cm | ||
Syntax | col 36470 | Extend class notation with orthlattices. |
class OL | ||
Syntax | coml 36471 | Extend class notation with orthomodular lattices. |
class OML | ||
Definition | df-oposet 36472* | 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 36473* | 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 36474 | Define the class of ortholattices. Definition from [Kalmbach] p. 16. (Contributed by NM, 18-Sep-2011.) |
⊢ OL = (Lat ∩ OP) | ||
Definition | df-oml 36475* | 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 36476* | 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 36477 | Every orthoposet is a poset. (Contributed by NM, 12-Oct-2011.) |
⊢ (𝐾 ∈ OP → 𝐾 ∈ Poset) | ||
Theorem | oposlem 36478 | 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 36479 | Conditions necessary for zero and unit 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 36480 | An orthoposet has a zero element. (h0elch 29038 analog.) (Contributed by NM, 12-Oct-2011.) |
⊢ 𝐵 = (Base‘𝐾) & ⊢ 0 = (0.‘𝐾) ⇒ ⊢ (𝐾 ∈ OP → 0 ∈ 𝐵) | ||
Theorem | op1cl 36481 | An orthoposet has a unit element. (helch 29026 analog.) (Contributed by NM, 22-Oct-2011.) |
⊢ 𝐵 = (Base‘𝐾) & ⊢ 1 = (1.‘𝐾) ⇒ ⊢ (𝐾 ∈ OP → 1 ∈ 𝐵) | ||
Theorem | op0le 36482 | Orthoposet zero is less than or equal to any element. (ch0le 29224 analog.) (Contributed by NM, 12-Oct-2011.) |
⊢ 𝐵 = (Base‘𝐾) & ⊢ ≤ = (le‘𝐾) & ⊢ 0 = (0.‘𝐾) ⇒ ⊢ ((𝐾 ∈ OP ∧ 𝑋 ∈ 𝐵) → 0 ≤ 𝑋) | ||
Theorem | ople0 36483 | An element less than or equal to zero equals zero. (chle0 29226 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 36484 | An element not less than another is nonzero. TODO: Look for uses of necon3bd 3001 and op0le 36482 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 36485 | 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 36486 | 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 36487 | Any element is less than the orthoposet unit. (chss 29012 analog.) (Contributed by NM, 23-Oct-2011.) |
⊢ 𝐵 = (Base‘𝐾) & ⊢ ≤ = (le‘𝐾) & ⊢ 1 = (1.‘𝐾) ⇒ ⊢ ((𝐾 ∈ OP ∧ 𝑋 ∈ 𝐵) → 𝑋 ≤ 1 ) | ||
Theorem | op1le 36488 | If the orthoposet unit is less than or equal to an element, the element equals the unit. (chle0 29226 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 36489 | The greatest lower bound of the empty set is the unit element. (Contributed by NM, 5-Dec-2011.) (New usage is discouraged.) |
⊢ 𝐺 = (glb‘𝐾) & ⊢ 1 = (1.‘𝐾) ⇒ ⊢ (𝐾 ∈ OP → (𝐺‘∅) = 1 ) | ||
Theorem | opoccl 36490 | Closure of orthocomplement operation. (choccl 29089 analog.) (Contributed by NM, 20-Oct-2011.) |
⊢ 𝐵 = (Base‘𝐾) & ⊢ ⊥ = (oc‘𝐾) ⇒ ⊢ ((𝐾 ∈ OP ∧ 𝑋 ∈ 𝐵) → ( ⊥ ‘𝑋) ∈ 𝐵) | ||
Theorem | opococ 36491 | Double negative law for orthoposets. (ococ 29189 analog.) (Contributed by NM, 13-Sep-2011.) |
⊢ 𝐵 = (Base‘𝐾) & ⊢ ⊥ = (oc‘𝐾) ⇒ ⊢ ((𝐾 ∈ OP ∧ 𝑋 ∈ 𝐵) → ( ⊥ ‘( ⊥ ‘𝑋)) = 𝑋) | ||
Theorem | opcon3b 36492 | Contraposition law for orthoposets. (chcon3i 29249 analog.) (Contributed by NM, 8-Nov-2011.) |
⊢ 𝐵 = (Base‘𝐾) & ⊢ ⊥ = (oc‘𝐾) ⇒ ⊢ ((𝐾 ∈ OP ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → (𝑋 = 𝑌 ↔ ( ⊥ ‘𝑌) = ( ⊥ ‘𝑋))) | ||
Theorem | opcon2b 36493 | Orthocomplement contraposition law. (negcon2 10928 analog.) (Contributed by NM, 16-Jan-2012.) |
⊢ 𝐵 = (Base‘𝐾) & ⊢ ⊥ = (oc‘𝐾) ⇒ ⊢ ((𝐾 ∈ OP ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → (𝑋 = ( ⊥ ‘𝑌) ↔ 𝑌 = ( ⊥ ‘𝑋))) | ||
Theorem | opcon1b 36494 | Orthocomplement contraposition law. (negcon1 10927 analog.) (Contributed by NM, 24-Jan-2012.) |
⊢ 𝐵 = (Base‘𝐾) & ⊢ ⊥ = (oc‘𝐾) ⇒ ⊢ ((𝐾 ∈ OP ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → (( ⊥ ‘𝑋) = 𝑌 ↔ ( ⊥ ‘𝑌) = 𝑋)) | ||
Theorem | oplecon3 36495 | 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))) | ||
Theorem | oplecon3b 36496 | Contraposition law for orthoposets. (chsscon3 29283 analog.) (Contributed by NM, 4-Nov-2011.) |
⊢ 𝐵 = (Base‘𝐾) & ⊢ ≤ = (le‘𝐾) & ⊢ ⊥ = (oc‘𝐾) ⇒ ⊢ ((𝐾 ∈ OP ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → (𝑋 ≤ 𝑌 ↔ ( ⊥ ‘𝑌) ≤ ( ⊥ ‘𝑋))) | ||
Theorem | oplecon1b 36497 | Contraposition law for strict ordering in orthoposets. (chsscon1 29284 analog.) (Contributed by NM, 6-Nov-2011.) |
⊢ 𝐵 = (Base‘𝐾) & ⊢ ≤ = (le‘𝐾) & ⊢ ⊥ = (oc‘𝐾) ⇒ ⊢ ((𝐾 ∈ OP ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → (( ⊥ ‘𝑋) ≤ 𝑌 ↔ ( ⊥ ‘𝑌) ≤ 𝑋)) | ||
Theorem | opoc1 36498 | Orthocomplement of orthoposet unit. (Contributed by NM, 24-Jan-2012.) |
⊢ 0 = (0.‘𝐾) & ⊢ 1 = (1.‘𝐾) & ⊢ ⊥ = (oc‘𝐾) ⇒ ⊢ (𝐾 ∈ OP → ( ⊥ ‘ 1 ) = 0 ) | ||
Theorem | opoc0 36499 | Orthocomplement of orthoposet zero. (Contributed by NM, 24-Jan-2012.) |
⊢ 0 = (0.‘𝐾) & ⊢ 1 = (1.‘𝐾) & ⊢ ⊥ = (oc‘𝐾) ⇒ ⊢ (𝐾 ∈ OP → ( ⊥ ‘ 0 ) = 1 ) | ||
Theorem | opltcon3b 36500 | Contraposition law for strict ordering in orthoposets. (chpsscon3 29286 analog.) (Contributed by NM, 4-Nov-2011.) |
⊢ 𝐵 = (Base‘𝐾) & ⊢ < = (lt‘𝐾) & ⊢ ⊥ = (oc‘𝐾) ⇒ ⊢ ((𝐾 ∈ OP ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → (𝑋 < 𝑌 ↔ ( ⊥ ‘𝑌) < ( ⊥ ‘𝑋))) |
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