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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 4200 | 1 ⊢ (𝜑 → (𝑥 ∈ 𝐴 ↦ 𝐵) = (𝑥 ∈ 𝐴 ↦ 𝐶)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1398 ∈ wcel 2203 ↦ cmpt 4171 |
| 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 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-11 1555 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-ext 2214 |
| This theorem depends on definitions: df-bi 117 df-tru 1401 df-nf 1510 df-sb 1812 df-clab 2219 df-cleq 2225 df-clel 2228 df-ral 2525 df-opab 4172 df-mpt 4173 |
| This theorem is referenced by: ofeqd 6268 ofeq 6269 rdgeq1 6602 rdgeq2 6603 omv 6688 oeiv 6689 0tonninf 10802 1tonninf 10803 iseqf1olemjpcl 10870 iseqf1olemqpcl 10871 iseqf1olemfvp 10872 seq3f1olemqsum 10875 seq3f1olemp 10877 summodc 12069 zsumdc 12070 fsum3 12073 prodeq2w 12242 prodmodc 12264 zproddc 12265 fprodseq 12269 nninfctlemfo 12736 1arithlem1 13061 sloteq 13217 prdsplusgval 13496 prdsmulrval 13498 qusex 13538 grplactfval 13814 cnprcl2k 15071 fsumcncntop 15432 expcn 15434 expcncf 15474 dvexp 15576 dvexp2 15577 dvmptfsum 15590 elply2 15600 elplyr 15605 elplyd 15606 plycolemc 15623 dvply2g 15631 lgsval 15877 incistruhgr 16085 peano4nninf 16784 peano3nninf 16785 nninfalllem1 16786 nninfsellemdc 16788 nninfsellemeq 16792 nninfsellemqall 16793 nninfsellemeqinf 16794 nninfomni 16797 nnnninfex 16800 gfsumsn 16867 |
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