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| Mirrors > Home > MPE Home > Th. List > 0pval | Structured version Visualization version GIF version | ||
| Description: The zero function evaluates to zero at every point. (Contributed by Mario Carneiro, 23-Jul-2014.) |
| Ref | Expression |
|---|---|
| 0pval | ⊢ (𝐴 ∈ ℂ → (0𝑝‘𝐴) = 0) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-0p 25991 | . . 3 ⊢ 0𝑝 = (ℂ × {0}) | |
| 2 | 1 | fveq1i 6886 | . 2 ⊢ (0𝑝‘𝐴) = ((ℂ × {0})‘𝐴) |
| 3 | c0ex 11300 | . . 3 ⊢ 0 ∈ V | |
| 4 | 3 | fvconst2 7210 | . 2 ⊢ (𝐴 ∈ ℂ → ((ℂ × {0})‘𝐴) = 0) |
| 5 | 2, 4 | eqtrid 2807 | 1 ⊢ (𝐴 ∈ ℂ → (0𝑝‘𝐴) = 0) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1569 ∈ wcel 2144 {csn 4583 × cxp 5648 ‘cfv 6538 ℂcc 11198 0cc0 11200 0𝑝c0p 25990 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-sep 5248 ax-nul 5259 ax-pr 5390 ax-1cn 11258 ax-icn 11259 ax-addcl 11260 ax-mulcl 11262 ax-i2m1 11268 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-ral 3077 df-rex 3087 df-rab 3413 df-v 3452 df-ss 3896 df-dif 4047 df-in 4091 df-un 4151 df-nul 4279 df-if 4482 df-sn 4584 df-pr 4586 df-op 4590 df-uni 4867 df-br 5103 df-opab 5167 df-mpt 5186 df-id 5545 df-xp 5656 df-rel 5657 df-cnv 5658 df-co 5659 df-dm 5660 df-rn 5661 df-iota 6494 df-fun 6540 df-fn 6541 df-f 6542 df-fv 6546 df-0p 25991 |
| This theorem is used by: 0plef 25993 0pledm 25994 itg1ge0 26007 mbfi1fseqlem5 26040 itg2addlem 26079 ne0p 26525 plyeq0lem 26529 plymul02 26601 plydivlem3 26616 dgraa0p 44151 |
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