| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| 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 4221 | 1 ⊢ (𝜑 → (𝑥 ∈ 𝐴 ↦ 𝐵) = (𝑥 ∈ 𝐴 ↦ 𝐶)) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: → wi 4 = wceq 1402 ∈ wcel 2209 ↦ cmpt 4192 |
| This proof depends on 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 proof 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 4193 df-mpt 4194 |
| This theorem is used by: ofeqd 6304 ofeq 6305 rdgeq1 6642 rdgeq2 6643 omv 6728 oeiv 6729 indval 9296 0tonninf 10877 1tonninf 10878 iseqf1olemjpcl 10945 iseqf1olemqpcl 10946 iseqf1olemfvp 10947 seq3f1olemqsum 10950 seq3f1olemp 10952 summodc 12150 zsumdc 12151 fsum3 12154 prodeq2w 12323 prodmodc 12345 zproddc 12346 fprodseq 12350 nninfctlemfo 12817 1arithlem1 13142 ballotfilemfval 13229 ballotfi 13282 sloteq 13357 qusex 13646 grplactfval 13906 gsumsncmn 14156 prdsplusgval 14183 prdsmulrval 14185 cnprcl2k 15307 fsumcncntop 15668 expcn 15670 expcncf 15710 dvexp 15812 dvexp2 15813 dvmptfsum 15826 elply2 15836 elplyr 15841 elplyd 15842 plycolemc 15859 dvply2g 15867 lgsval 16127 incistruhgr 16335 peano4nninf 17053 peano3nninf 17054 nninfalllem1 17055 nninfsellemdc 17057 nninfsellemeq 17061 nninfsellemqall 17062 nninfsellemeqinf 17063 nninfomni 17066 nnnninfex 17069 |
| Copyright terms: Public domain | W3C validator |