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| 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 4174 | 1 ⊢ (𝜑 → (𝑥 ∈ 𝐴 ↦ 𝐵) = (𝑥 ∈ 𝐴 ↦ 𝐶)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1395 ∈ wcel 2200 ↦ cmpt 4145 |
| 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 4146 df-mpt 4147 |
| This theorem is referenced by: ofeqd 6226 ofeq 6227 rdgeq1 6523 rdgeq2 6524 omv 6609 oeiv 6610 0tonninf 10674 1tonninf 10675 iseqf1olemjpcl 10742 iseqf1olemqpcl 10743 iseqf1olemfvp 10744 seq3f1olemqsum 10747 seq3f1olemp 10749 summodc 11909 zsumdc 11910 fsum3 11913 prodeq2w 12082 prodmodc 12104 zproddc 12105 fprodseq 12109 nninfctlemfo 12576 1arithlem1 12901 sloteq 13052 prdsplusgval 13331 prdsmulrval 13333 qusex 13373 grplactfval 13649 cnprcl2k 14895 fsumcncntop 15256 expcn 15258 expcncf 15298 dvexp 15400 dvexp2 15401 dvmptfsum 15414 elply2 15424 elplyr 15429 elplyd 15430 plycolemc 15447 dvply2g 15455 lgsval 15698 incistruhgr 15905 peano4nninf 16432 peano3nninf 16433 nninfalllem1 16434 nninfsellemdc 16436 nninfsellemeq 16440 nninfsellemqall 16441 nninfsellemeqinf 16442 nninfomni 16445 nnnninfex 16448 |
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