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| Mirrors > Home > ILE Home > Th. List > cbvmptv | GIF version | ||
| Description: Rule to change the bound variable in a maps-to function, using implicit substitution. (Contributed by Mario Carneiro, 19-Feb-2013.) |
| Ref | Expression |
|---|---|
| cbvmptv.1 | ⊢ (𝑥 = 𝑦 → 𝐵 = 𝐶) |
| Ref | Expression |
|---|---|
| cbvmptv | ⊢ (𝑥 ∈ 𝐴 ↦ 𝐵) = (𝑦 ∈ 𝐴 ↦ 𝐶) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nfcv 2375 | . 2 ⊢ Ⅎ𝑦𝐵 | |
| 2 | nfcv 2375 | . 2 ⊢ Ⅎ𝑥𝐶 | |
| 3 | cbvmptv.1 | . 2 ⊢ (𝑥 = 𝑦 → 𝐵 = 𝐶) | |
| 4 | 1, 2, 3 | cbvmpt 4189 | 1 ⊢ (𝑥 ∈ 𝐴 ↦ 𝐵) = (𝑦 ∈ 𝐴 ↦ 𝐶) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1398 ↦ cmpt 4155 |
| 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-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-ext 2213 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2364 df-v 2805 df-un 3205 df-sn 3679 df-pr 3680 df-op 3682 df-opab 4156 df-mpt 4157 |
| This theorem is referenced by: fnmptfvd 5760 frecsuc 6616 pw2f1odclem 7063 xpmapen 7079 omp1eom 7337 fodjuomni 7391 fodjumkv 7402 nninfwlporlemd 7414 nninfwlpor 7416 nninfwlpoim 7421 nninfinfwlpo 7422 caucvgsrlembnd 8064 negiso 9178 infrenegsupex 9871 frec2uzsucd 10707 frecuzrdgdom 10724 frecuzrdgfun 10726 frecuzrdgsuct 10730 0tonninf 10746 1tonninf 10747 seq3f1oleml 10822 seq3f1o 10823 hashfz1 11089 xrnegiso 11883 infxrnegsupex 11884 climcvg1n 11971 summodc 12005 zsumdc 12006 fsum3 12009 fsumadd 12028 prodmodc 12200 zproddc 12201 fprodseq 12205 phimullem 12858 eulerthlemh 12864 eulerthlemth 12865 ennnfonelemnn0 13104 ennnfonelemr 13105 ctinfom 13110 grplactcnv 13746 expcn 15360 cdivcncfap 15395 expcncf 15400 ivthdich 15444 plyadd 15542 plymul 15543 plyco 15550 plycjlemc 15551 plycj 15552 dvply2g 15557 lgseisenlem3 15871 2sqlem1 15913 bj-charfunbi 16507 subctctexmid 16702 nninfsellemqall 16721 nninfomni 16725 nninffeq 16726 exmidsbthrlem 16730 exmidsbthr 16731 isomninn 16743 iswomninn 16763 ismkvnn 16766 |
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