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| Mirrors > Home > MPE Home > Th. List > sspgval | Structured version Visualization version GIF version | ||
| Description: Vector addition on a subspace in terms of vector addition on the parent space. (Contributed by NM, 28-Jan-2008.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| sspg.y | ⊢ 𝑌 = (BaseSet‘𝑊) |
| sspg.g | ⊢ 𝐺 = ( +𝑣 ‘𝑈) |
| sspg.f | ⊢ 𝐹 = ( +𝑣 ‘𝑊) |
| sspg.h | ⊢ 𝐻 = (SubSp‘𝑈) |
| Ref | Expression |
|---|---|
| sspgval | ⊢ (((𝑈 ∈ NrmCVec ∧ 𝑊 ∈ 𝐻) ∧ (𝐴 ∈ 𝑌 ∧ 𝐵 ∈ 𝑌)) → (𝐴𝐹𝐵) = (𝐴𝐺𝐵)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sspg.y | . . . 4 ⊢ 𝑌 = (BaseSet‘𝑊) | |
| 2 | sspg.g | . . . 4 ⊢ 𝐺 = ( +𝑣 ‘𝑈) | |
| 3 | sspg.f | . . . 4 ⊢ 𝐹 = ( +𝑣 ‘𝑊) | |
| 4 | sspg.h | . . . 4 ⊢ 𝐻 = (SubSp‘𝑈) | |
| 5 | 1, 2, 3, 4 | sspg 31117 | . . 3 ⊢ ((𝑈 ∈ NrmCVec ∧ 𝑊 ∈ 𝐻) → 𝐹 = (𝐺 ↾ (𝑌 × 𝑌))) |
| 6 | 5 | oveqd 7440 | . 2 ⊢ ((𝑈 ∈ NrmCVec ∧ 𝑊 ∈ 𝐻) → (𝐴𝐹𝐵) = (𝐴(𝐺 ↾ (𝑌 × 𝑌))𝐵)) |
| 7 | ovres 7589 | . 2 ⊢ ((𝐴 ∈ 𝑌 ∧ 𝐵 ∈ 𝑌) → (𝐴(𝐺 ↾ (𝑌 × 𝑌))𝐵) = (𝐴𝐺𝐵)) | |
| 8 | 6, 7 | sylan9eq 2821 | 1 ⊢ (((𝑈 ∈ NrmCVec ∧ 𝑊 ∈ 𝐻) ∧ (𝐴 ∈ 𝑌 ∧ 𝐵 ∈ 𝑌)) → (𝐴𝐹𝐵) = (𝐴𝐺𝐵)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1570 ∈ wcel 2146 × cxp 5664 ↾ cres 5668 ‘cfv 6543 (class class class)co 7423 NrmCVeccnv 30973 +𝑣 cpv 30974 BaseSetcba 30975 SubSpcss 31110 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2148 ax-9 2156 ax-10 2179 ax-11 2195 ax-12 2216 ax-ext 2738 ax-rep 5243 ax-sep 5262 ax-nul 5274 ax-pow 5341 ax-pr 5409 ax-un 7745 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2570 df-eu 2600 df-clab 2745 df-cleq 2758 df-clel 2841 df-nfc 2915 df-ne 2962 df-ral 3083 df-rex 3093 df-reu 3373 df-rab 3420 df-v 3460 df-sbc 3748 df-csb 3857 df-dif 3911 df-un 3913 df-in 3915 df-ss 3925 df-nul 4290 df-if 4493 df-pw 4569 df-sn 4595 df-pr 4597 df-op 4601 df-uni 4878 df-iun 4963 df-br 5115 df-opab 5179 df-mpt 5198 df-id 5561 df-xp 5672 df-rel 5673 df-cnv 5674 df-co 5675 df-dm 5676 df-rn 5677 df-res 5678 df-ima 5679 df-iota 6499 df-fun 6545 df-fn 6546 df-f 6547 df-f1 6548 df-fo 6549 df-f1o 6550 df-fv 6551 df-ov 7426 df-oprab 7427 df-1st 7995 df-2nd 7996 df-grpo 30882 df-ablo 30934 df-vc 30948 df-nv 30981 df-va 30984 df-ba 30985 df-sm 30986 df-0v 30987 df-nmcv 30989 df-ssp 31111 |
| This theorem is used by: sspmval 31122 minvecolem2 31264 hhshsslem2 31657 |
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