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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 4179 | 1 ⊢ (𝜑 → (𝑥 ∈ 𝐴 ↦ 𝐵) = (𝑥 ∈ 𝐴 ↦ 𝐶)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1397 ∈ wcel 2202 ↦ cmpt 4150 |
| 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 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-11 1554 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-ext 2213 |
| This theorem depends on definitions: df-bi 117 df-tru 1400 df-nf 1509 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-ral 2515 df-opab 4151 df-mpt 4152 |
| This theorem is referenced by: ofeqd 6237 ofeq 6238 rdgeq1 6537 rdgeq2 6538 omv 6623 oeiv 6624 0tonninf 10703 1tonninf 10704 iseqf1olemjpcl 10771 iseqf1olemqpcl 10772 iseqf1olemfvp 10773 seq3f1olemqsum 10776 seq3f1olemp 10778 summodc 11962 zsumdc 11963 fsum3 11966 prodeq2w 12135 prodmodc 12157 zproddc 12158 fprodseq 12162 nninfctlemfo 12629 1arithlem1 12954 sloteq 13105 prdsplusgval 13384 prdsmulrval 13386 qusex 13426 grplactfval 13702 cnprcl2k 14949 fsumcncntop 15310 expcn 15312 expcncf 15352 dvexp 15454 dvexp2 15455 dvmptfsum 15468 elply2 15478 elplyr 15483 elplyd 15484 plycolemc 15501 dvply2g 15509 lgsval 15752 incistruhgr 15960 peano4nninf 16659 peano3nninf 16660 nninfalllem1 16661 nninfsellemdc 16663 nninfsellemeq 16667 nninfsellemqall 16668 nninfsellemeqinf 16669 nninfomni 16672 nnnninfex 16675 gfsumsn 16737 |
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