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Mirrors > Home > MPE Home > Th. List > Mathboxes > afveq2 | Structured version Visualization version GIF version |
Description: Equality theorem for function value, analogous to fveq1 6657. (Contributed by Alexander van der Vekens, 22-Jul-2017.) |
Ref | Expression |
---|---|
afveq2 | ⊢ (𝐴 = 𝐵 → (𝐹'''𝐴) = (𝐹'''𝐵)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eqidd 2759 | . 2 ⊢ (𝐴 = 𝐵 → 𝐹 = 𝐹) | |
2 | id 22 | . 2 ⊢ (𝐴 = 𝐵 → 𝐴 = 𝐵) | |
3 | 1, 2 | afveq12d 44079 | 1 ⊢ (𝐴 = 𝐵 → (𝐹'''𝐴) = (𝐹'''𝐵)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1538 '''cafv 44063 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2113 ax-9 2121 ax-10 2142 ax-11 2158 ax-12 2175 ax-ext 2729 ax-sep 5169 ax-nul 5176 ax-pow 5234 ax-pr 5298 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 845 df-3an 1086 df-tru 1541 df-fal 1551 df-ex 1782 df-nf 1786 df-sb 2070 df-mo 2557 df-eu 2588 df-clab 2736 df-cleq 2750 df-clel 2830 df-nfc 2901 df-ne 2952 df-ral 3075 df-rex 3076 df-rab 3079 df-v 3411 df-sbc 3697 df-csb 3806 df-dif 3861 df-un 3863 df-in 3865 df-ss 3875 df-nul 4226 df-if 4421 df-sn 4523 df-pr 4525 df-op 4529 df-uni 4799 df-int 4839 df-br 5033 df-opab 5095 df-id 5430 df-xp 5530 df-rel 5531 df-cnv 5532 df-co 5533 df-dm 5534 df-res 5536 df-iota 6294 df-fun 6337 df-fv 6343 df-aiota 44030 df-dfat 44065 df-afv 44066 |
This theorem is referenced by: ffnaov 44145 |
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