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| Mirrors > Home > MPE Home > Th. List > fvpr2 | Structured version Visualization version GIF version | ||
| Description: The value of a function with a domain of two elements. (Contributed by Jeff Madsen, 20-Jun-2010.) (Proof shortened by BJ, 26-Sep-2024.) |
| Ref | Expression |
|---|---|
| fvpr2.1 | ⊢ 𝐵 ∈ V |
| fvpr2.2 | ⊢ 𝐷 ∈ V |
| Ref | Expression |
|---|---|
| fvpr2 | ⊢ (𝐴 ≠ 𝐵 → ({〈𝐴, 𝐶〉, 〈𝐵, 𝐷〉}‘𝐵) = 𝐷) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fvpr2.1 | . 2 ⊢ 𝐵 ∈ V | |
| 2 | fvpr2.2 | . 2 ⊢ 𝐷 ∈ V | |
| 3 | fvpr2g 7135 | . 2 ⊢ ((𝐵 ∈ V ∧ 𝐷 ∈ V ∧ 𝐴 ≠ 𝐵) → ({〈𝐴, 𝐶〉, 〈𝐵, 𝐷〉}‘𝐵) = 𝐷) | |
| 4 | 1, 2, 3 | mp3an12 1459 | 1 ⊢ (𝐴 ≠ 𝐵 → ({〈𝐴, 𝐶〉, 〈𝐵, 𝐷〉}‘𝐵) = 𝐷) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1547 ∈ wcel 2119 ≠ wne 2934 Vcvv 3431 {cpr 4557 〈cop 4561 ‘cfv 6485 |
| 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-12 2189 ax-ext 2711 ax-sep 5218 ax-nul 5228 ax-pr 5362 |
| 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 2718 df-cleq 2731 df-clel 2814 df-ne 2935 df-ral 3054 df-rex 3064 df-rab 3392 df-v 3433 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-nul 4262 df-if 4455 df-sn 4556 df-pr 4558 df-op 4562 df-uni 4839 df-br 5073 df-opab 5135 df-id 5513 df-xp 5624 df-rel 5625 df-cnv 5626 df-co 5627 df-dm 5628 df-res 5630 df-iota 6441 df-fun 6487 df-fv 6493 |
| This theorem is referenced by: fprb 7138 fnprb 7152 m2detleiblem3 22612 m2detleiblem4 22613 axlowdimlem6 29034 umgr2v2evd2 29614 ex-fv 30531 bj-endcomp 37677 nnsum3primes4 48279 nnsum3primesgbe 48283 zlmodzxzldeplem3 48993 2arymaptfo 49145 prelrrx2b 49205 rrx2plordisom 49214 ehl2eudisval0 49216 itscnhlinecirc02p 49276 |
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