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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 4205 | 1 ⊢ (𝜑 → (𝑥 ∈ 𝐴 ↦ 𝐵) = (𝑥 ∈ 𝐴 ↦ 𝐶)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1398 ∈ wcel 2205 ↦ cmpt 4176 |
| 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 2216 |
| This theorem depends on definitions: df-bi 117 df-tru 1401 df-nf 1510 df-sb 1812 df-clab 2221 df-cleq 2227 df-clel 2230 df-ral 2527 df-opab 4177 df-mpt 4178 |
| This theorem is referenced by: ofeqd 6277 ofeq 6278 rdgeq1 6615 rdgeq2 6616 omv 6701 oeiv 6702 0tonninf 10826 1tonninf 10827 iseqf1olemjpcl 10894 iseqf1olemqpcl 10895 iseqf1olemfvp 10896 seq3f1olemqsum 10899 seq3f1olemp 10901 summodc 12094 zsumdc 12095 fsum3 12098 prodeq2w 12267 prodmodc 12289 zproddc 12290 fprodseq 12294 nninfctlemfo 12761 1arithlem1 13086 ballotfilemfval 13173 ballotfi 13226 sloteq 13301 qusex 13589 grplactfval 13856 gfsumsn 14107 prdsplusgval 14125 prdsmulrval 14127 cnprcl2k 15197 fsumcncntop 15558 expcn 15560 expcncf 15600 dvexp 15702 dvexp2 15703 dvmptfsum 15716 elply2 15726 elplyr 15731 elplyd 15732 plycolemc 15749 dvply2g 15757 lgsval 16003 incistruhgr 16211 peano4nninf 16910 peano3nninf 16911 nninfalllem1 16912 nninfsellemdc 16914 nninfsellemeq 16918 nninfsellemqall 16919 nninfsellemeqinf 16920 nninfomni 16923 nnnninfex 16926 |
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