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Mirrors > Home > MPE Home > Th. List > 0vfval | Structured version Visualization version GIF version |
Description: Value of the function for the zero vector on a normed complex vector space. (Contributed by NM, 24-Apr-2007.) (Revised by Mario Carneiro, 21-Dec-2013.) (New usage is discouraged.) |
Ref | Expression |
---|---|
0vfval.2 | ⊢ 𝐺 = ( +𝑣 ‘𝑈) |
0vfval.5 | ⊢ 𝑍 = (0vec‘𝑈) |
Ref | Expression |
---|---|
0vfval | ⊢ (𝑈 ∈ 𝑉 → 𝑍 = (GId‘𝐺)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elex 3423 | . 2 ⊢ (𝑈 ∈ 𝑉 → 𝑈 ∈ V) | |
2 | fo1st 7778 | . . . . . . 7 ⊢ 1st :V–onto→V | |
3 | fofn 6632 | . . . . . . 7 ⊢ (1st :V–onto→V → 1st Fn V) | |
4 | 2, 3 | ax-mp 5 | . . . . . 6 ⊢ 1st Fn V |
5 | ssv 3922 | . . . . . 6 ⊢ ran 1st ⊆ V | |
6 | fnco 6491 | . . . . . 6 ⊢ ((1st Fn V ∧ 1st Fn V ∧ ran 1st ⊆ V) → (1st ∘ 1st ) Fn V) | |
7 | 4, 4, 5, 6 | mp3an 1463 | . . . . 5 ⊢ (1st ∘ 1st ) Fn V |
8 | df-va 28673 | . . . . . 6 ⊢ +𝑣 = (1st ∘ 1st ) | |
9 | 8 | fneq1i 6473 | . . . . 5 ⊢ ( +𝑣 Fn V ↔ (1st ∘ 1st ) Fn V) |
10 | 7, 9 | mpbir 234 | . . . 4 ⊢ +𝑣 Fn V |
11 | fvco2 6805 | . . . 4 ⊢ (( +𝑣 Fn V ∧ 𝑈 ∈ V) → ((GId ∘ +𝑣 )‘𝑈) = (GId‘( +𝑣 ‘𝑈))) | |
12 | 10, 11 | mpan 690 | . . 3 ⊢ (𝑈 ∈ V → ((GId ∘ +𝑣 )‘𝑈) = (GId‘( +𝑣 ‘𝑈))) |
13 | 0vfval.5 | . . . 4 ⊢ 𝑍 = (0vec‘𝑈) | |
14 | df-0v 28676 | . . . . 5 ⊢ 0vec = (GId ∘ +𝑣 ) | |
15 | 14 | fveq1i 6715 | . . . 4 ⊢ (0vec‘𝑈) = ((GId ∘ +𝑣 )‘𝑈) |
16 | 13, 15 | eqtri 2765 | . . 3 ⊢ 𝑍 = ((GId ∘ +𝑣 )‘𝑈) |
17 | 0vfval.2 | . . . 4 ⊢ 𝐺 = ( +𝑣 ‘𝑈) | |
18 | 17 | fveq2i 6717 | . . 3 ⊢ (GId‘𝐺) = (GId‘( +𝑣 ‘𝑈)) |
19 | 12, 16, 18 | 3eqtr4g 2803 | . 2 ⊢ (𝑈 ∈ V → 𝑍 = (GId‘𝐺)) |
20 | 1, 19 | syl 17 | 1 ⊢ (𝑈 ∈ 𝑉 → 𝑍 = (GId‘𝐺)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1543 ∈ wcel 2110 Vcvv 3405 ⊆ wss 3863 ran crn 5549 ∘ ccom 5552 Fn wfn 6372 –onto→wfo 6375 ‘cfv 6377 1st c1st 7756 GIdcgi 28568 +𝑣 cpv 28663 0veccn0v 28666 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1803 ax-4 1817 ax-5 1918 ax-6 1976 ax-7 2016 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2158 ax-12 2175 ax-ext 2708 ax-sep 5189 ax-nul 5196 ax-pr 5319 ax-un 7520 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 848 df-3an 1091 df-tru 1546 df-fal 1556 df-ex 1788 df-nf 1792 df-sb 2071 df-mo 2539 df-eu 2568 df-clab 2715 df-cleq 2729 df-clel 2816 df-nfc 2886 df-ne 2940 df-ral 3063 df-rex 3064 df-rab 3067 df-v 3407 df-dif 3866 df-un 3868 df-in 3870 df-ss 3880 df-nul 4235 df-if 4437 df-sn 4539 df-pr 4541 df-op 4545 df-uni 4817 df-br 5051 df-opab 5113 df-mpt 5133 df-id 5452 df-xp 5554 df-rel 5555 df-cnv 5556 df-co 5557 df-dm 5558 df-rn 5559 df-res 5560 df-ima 5561 df-iota 6335 df-fun 6379 df-fn 6380 df-f 6381 df-fo 6383 df-fv 6385 df-1st 7758 df-va 28673 df-0v 28676 |
This theorem is referenced by: nvi 28692 nvzcl 28712 nv0rid 28713 nv0lid 28714 nv0 28715 nvsz 28716 nvrinv 28729 nvlinv 28730 hh0v 29246 |
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