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| Mirrors > Home > MPE Home > Th. List > sspsval | Structured version Visualization version GIF version | ||
| Description: Scalar multiplication on a subspace in terms of scalar multiplication on the parent space. (Contributed by NM, 28-Jan-2008.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| ssps.y | ⊢ 𝑌 = (BaseSet‘𝑊) |
| ssps.s | ⊢ 𝑆 = ( ·𝑠OLD ‘𝑈) |
| ssps.r | ⊢ 𝑅 = ( ·𝑠OLD ‘𝑊) |
| ssps.h | ⊢ 𝐻 = (SubSp‘𝑈) |
| Ref | Expression |
|---|---|
| sspsval | ⊢ (((𝑈 ∈ NrmCVec ∧ 𝑊 ∈ 𝐻) ∧ (𝐴 ∈ ℂ ∧ 𝐵 ∈ 𝑌)) → (𝐴𝑅𝐵) = (𝐴𝑆𝐵)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ssps.y | . . . 4 ⊢ 𝑌 = (BaseSet‘𝑊) | |
| 2 | ssps.s | . . . 4 ⊢ 𝑆 = ( ·𝑠OLD ‘𝑈) | |
| 3 | ssps.r | . . . 4 ⊢ 𝑅 = ( ·𝑠OLD ‘𝑊) | |
| 4 | ssps.h | . . . 4 ⊢ 𝐻 = (SubSp‘𝑈) | |
| 5 | 1, 2, 3, 4 | ssps 31325 | . . 3 ⊢ ((𝑈 ∈ NrmCVec ∧ 𝑊 ∈ 𝐻) → 𝑅 = (𝑆 ↾ (ℂ × 𝑌))) |
| 6 | 5 | oveqd 7435 | . 2 ⊢ ((𝑈 ∈ NrmCVec ∧ 𝑊 ∈ 𝐻) → (𝐴𝑅𝐵) = (𝐴(𝑆 ↾ (ℂ × 𝑌))𝐵)) |
| 7 | ovres 7584 | . 2 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ 𝑌) → (𝐴(𝑆 ↾ (ℂ × 𝑌))𝐵) = (𝐴𝑆𝐵)) | |
| 8 | 6, 7 | sylan9eq 2816 | 1 ⊢ (((𝑈 ∈ NrmCVec ∧ 𝑊 ∈ 𝐻) ∧ (𝐴 ∈ ℂ ∧ 𝐵 ∈ 𝑌)) → (𝐴𝑅𝐵) = (𝐴𝑆𝐵)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1570 ∈ wcel 2145 × cxp 5649 ↾ cres 5653 ‘cfv 6537 (class class class)co 7418 ℂcc 11191 NrmCVeccnv 31179 BaseSetcba 31181 ·𝑠OLD cns 31182 SubSpcss 31316 |
| 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 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2733 ax-rep 5232 ax-sep 5249 ax-nul 5260 ax-pow 5327 ax-pr 5391 ax-un 7749 |
| 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 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-ral 3078 df-rex 3088 df-reu 3367 df-rab 3414 df-v 3453 df-sbc 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-iun 4953 df-br 5104 df-opab 5168 df-mpt 5187 df-id 5546 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-res 5663 df-ima 5664 df-iota 6493 df-fun 6539 df-fn 6540 df-f 6541 df-f1 6542 df-fo 6543 df-f1o 6544 df-fv 6545 df-ov 7421 df-oprab 7422 df-1st 7999 df-2nd 8000 df-vc 31154 df-nv 31187 df-va 31190 df-ba 31191 df-sm 31192 df-0v 31193 df-nmcv 31195 df-ssp 31317 |
| This theorem is used by: sspmval 31328 minvecolem2 31470 hhshsslem2 31863 |
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