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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 4216 | 1 ⊢ (𝜑 → (𝑥 ∈ 𝐴 ↦ 𝐵) = (𝑥 ∈ 𝐴 ↦ 𝐶)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1402 ∈ wcel 2209 ↦ cmpt 4187 |
| 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 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-11 1559 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-ext 2220 |
| This theorem depends on definitions: df-bi 117 df-tru 1405 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-ral 2533 df-opab 4188 df-mpt 4189 |
| This theorem is referenced by: ofeqd 6294 ofeq 6295 rdgeq1 6632 rdgeq2 6633 omv 6718 oeiv 6719 0tonninf 10855 1tonninf 10856 iseqf1olemjpcl 10923 iseqf1olemqpcl 10924 iseqf1olemfvp 10925 seq3f1olemqsum 10928 seq3f1olemp 10930 summodc 12128 zsumdc 12129 fsum3 12132 prodeq2w 12301 prodmodc 12323 zproddc 12324 fprodseq 12328 nninfctlemfo 12795 1arithlem1 13120 ballotfilemfval 13207 ballotfi 13260 sloteq 13335 qusex 13623 grplactfval 13883 gsumsncmn 14133 prdsplusgval 14160 prdsmulrval 14162 cnprcl2k 15230 fsumcncntop 15591 expcn 15593 expcncf 15633 dvexp 15735 dvexp2 15736 dvmptfsum 15749 elply2 15759 elplyr 15764 elplyd 15765 plycolemc 15782 dvply2g 15790 lgsval 16037 incistruhgr 16245 peano4nninf 16954 peano3nninf 16955 nninfalllem1 16956 nninfsellemdc 16958 nninfsellemeq 16962 nninfsellemqall 16963 nninfsellemeqinf 16964 nninfomni 16967 nnnninfex 16970 |
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