| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > ILE Home > Th. List > mpteq2dv | GIF version | ||
| Description: An equality inference for the maps-to notation. (Contributed by Mario Carneiro, 23-Aug-2014.) |
| Ref | Expression |
|---|---|
| mpteq2dv.1 | ⊢ (𝜑 → 𝐵 = 𝐶) |
| Ref | Expression |
|---|---|
| mpteq2dv | ⊢ (𝜑 → (𝑥 ∈ 𝐴 ↦ 𝐵) = (𝑥 ∈ 𝐴 ↦ 𝐶)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | mpteq2dv.1 | . . 3 ⊢ (𝜑 → 𝐵 = 𝐶) | |
| 2 | 1 | adantr 276 | . 2 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → 𝐵 = 𝐶) |
| 3 | 2 | mpteq2dva 4177 | 1 ⊢ (𝜑 → (𝑥 ∈ 𝐴 ↦ 𝐵) = (𝑥 ∈ 𝐴 ↦ 𝐶)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1395 ∈ wcel 2200 ↦ cmpt 4148 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-11 1552 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-ext 2211 |
| This theorem depends on definitions: df-bi 117 df-tru 1398 df-nf 1507 df-sb 1809 df-clab 2216 df-cleq 2222 df-clel 2225 df-ral 2513 df-opab 4149 df-mpt 4150 |
| This theorem is referenced by: ofeqd 6232 ofeq 6233 rdgeq1 6532 rdgeq2 6533 omv 6618 oeiv 6619 0tonninf 10692 1tonninf 10693 iseqf1olemjpcl 10760 iseqf1olemqpcl 10761 iseqf1olemfvp 10762 seq3f1olemqsum 10765 seq3f1olemp 10767 summodc 11934 zsumdc 11935 fsum3 11938 prodeq2w 12107 prodmodc 12129 zproddc 12130 fprodseq 12134 nninfctlemfo 12601 1arithlem1 12926 sloteq 13077 prdsplusgval 13356 prdsmulrval 13358 qusex 13398 grplactfval 13674 cnprcl2k 14920 fsumcncntop 15281 expcn 15283 expcncf 15323 dvexp 15425 dvexp2 15426 dvmptfsum 15439 elply2 15449 elplyr 15454 elplyd 15455 plycolemc 15472 dvply2g 15480 lgsval 15723 incistruhgr 15931 peano4nninf 16544 peano3nninf 16545 nninfalllem1 16546 nninfsellemdc 16548 nninfsellemeq 16552 nninfsellemqall 16553 nninfsellemeqinf 16554 nninfomni 16557 nnnninfex 16560 |
| Copyright terms: Public domain | W3C validator |