MPE Home Metamath Proof Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  MPE Home  >  Th. List  >  sspgval Structured version   Visualization version   GIF version

Theorem sspgval 30825
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.)
Hypotheses
Ref Expression
sspg.y 𝑌 = (BaseSet‘𝑊)
sspg.g 𝐺 = ( +𝑣𝑈)
sspg.f 𝐹 = ( +𝑣𝑊)
sspg.h 𝐻 = (SubSp‘𝑈)
Assertion
Ref Expression
sspgval (((𝑈 ∈ NrmCVec ∧ 𝑊𝐻) ∧ (𝐴𝑌𝐵𝑌)) → (𝐴𝐹𝐵) = (𝐴𝐺𝐵))

Proof of Theorem sspgval
StepHypRef Expression
1 sspg.y . . . 4 𝑌 = (BaseSet‘𝑊)
2 sspg.g . . . 4 𝐺 = ( +𝑣𝑈)
3 sspg.f . . . 4 𝐹 = ( +𝑣𝑊)
4 sspg.h . . . 4 𝐻 = (SubSp‘𝑈)
51, 2, 3, 4sspg 30824 . . 3 ((𝑈 ∈ NrmCVec ∧ 𝑊𝐻) → 𝐹 = (𝐺 ↾ (𝑌 × 𝑌)))
65oveqd 7380 . 2 ((𝑈 ∈ NrmCVec ∧ 𝑊𝐻) → (𝐴𝐹𝐵) = (𝐴(𝐺 ↾ (𝑌 × 𝑌))𝐵))
7 ovres 7529 . 2 ((𝐴𝑌𝐵𝑌) → (𝐴(𝐺 ↾ (𝑌 × 𝑌))𝐵) = (𝐴𝐺𝐵))
86, 7sylan9eq 2795 1 (((𝑈 ∈ NrmCVec ∧ 𝑊𝐻) ∧ (𝐴𝑌𝐵𝑌)) → (𝐴𝐹𝐵) = (𝐴𝐺𝐵))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 396   = wceq 1547  wcel 2119   × cxp 5623  cres 5627  cfv 6492  (class class class)co 7363  NrmCVeccnv 30680   +𝑣 cpv 30681  BaseSetcba 30682  SubSpcss 30817
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1802  ax-4 1816  ax-5 1917  ax-6 1974  ax-7 2015  ax-8 2121  ax-9 2129  ax-10 2152  ax-11 2168  ax-12 2189  ax-ext 2712  ax-rep 5206  ax-sep 5225  ax-nul 5235  ax-pow 5301  ax-pr 5369  ax-un 7685
This theorem depends on definitions:  df-bi 208  df-an 397  df-or 854  df-3an 1094  df-tru 1550  df-fal 1560  df-ex 1787  df-nf 1791  df-sb 2074  df-mo 2543  df-eu 2573  df-clab 2719  df-cleq 2732  df-clel 2815  df-nfc 2889  df-ne 2936  df-ral 3055  df-rex 3065  df-reu 3346  df-rab 3393  df-v 3434  df-sbc 3731  df-csb 3839  df-dif 3893  df-un 3895  df-in 3897  df-ss 3907  df-nul 4269  df-if 4462  df-pw 4538  df-sn 4563  df-pr 4565  df-op 4569  df-uni 4846  df-iun 4930  df-br 5080  df-opab 5142  df-mpt 5161  df-id 5520  df-xp 5631  df-rel 5632  df-cnv 5633  df-co 5634  df-dm 5635  df-rn 5636  df-res 5637  df-ima 5638  df-iota 6448  df-fun 6494  df-fn 6495  df-f 6496  df-f1 6497  df-fo 6498  df-f1o 6499  df-fv 6500  df-ov 7366  df-oprab 7367  df-1st 7938  df-2nd 7939  df-grpo 30589  df-ablo 30641  df-vc 30655  df-nv 30688  df-va 30691  df-ba 30692  df-sm 30693  df-0v 30694  df-nmcv 30696  df-ssp 30818
This theorem is referenced by:  sspmval  30829  minvecolem2  30971  hhshsslem2  31364
  Copyright terms: Public domain W3C validator