| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| 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 7195 | . 2 ⊢ ((𝐵 ∈ V ∧ 𝐷 ∈ V ∧ 𝐴 ≠ 𝐵) → ({〈𝐴, 𝐶〉, 〈𝐵, 𝐷〉}‘𝐵) = 𝐷) | |
| 4 | 1, 2, 3 | mp3an12 1480 | 1 ⊢ (𝐴 ≠ 𝐵 → ({〈𝐴, 𝐶〉, 〈𝐵, 𝐷〉}‘𝐵) = 𝐷) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1570 ∈ wcel 2146 ≠ wne 2960 Vcvv 3457 {cpr 4593 〈cop 4597 ‘cfv 6540 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2148 ax-9 2156 ax-10 2179 ax-12 2216 ax-ext 2737 ax-sep 5259 ax-nul 5271 ax-pr 5406 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2569 df-eu 2599 df-clab 2744 df-cleq 2757 df-clel 2840 df-ne 2961 df-ral 3082 df-rex 3092 df-rab 3419 df-v 3459 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-nul 4287 df-if 4490 df-sn 4592 df-pr 4594 df-op 4598 df-uni 4875 df-br 5112 df-opab 5176 df-id 5558 df-xp 5669 df-rel 5670 df-cnv 5671 df-co 5672 df-dm 5673 df-res 5675 df-iota 6496 df-fun 6542 df-fv 6548 |
| This theorem is used by: fprb 7198 fnprb 7213 m2detleiblem3 22836 m2detleiblem4 22837 axlowdimlem6 29352 umgr2v2evd2 29935 ex-fv 30865 bj-endcomp 38018 nnsum3primes4 48611 nnsum3primesgbe 48615 zlmodzxzldeplem3 49339 2arymaptfo 49491 prelrrx2b 49551 rrx2plordisom 49560 ehl2eudisval0 49562 itscnhlinecirc02p 49622 |
| Copyright terms: Public domain | W3C validator |