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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 2384 | . 2 ⊢ Ⅎ𝑦𝐵 | |
| 2 | nfcv 2384 | . 2 ⊢ Ⅎ𝑥𝐶 | |
| 3 | cbvmptv.1 | . 2 ⊢ (𝑥 = 𝑦 → 𝐵 = 𝐶) | |
| 4 | 1, 2, 3 | cbvmpt 4204 | 1 ⊢ (𝑥 ∈ 𝐴 ↦ 𝐵) = (𝑦 ∈ 𝐴 ↦ 𝐶) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1398 ↦ cmpt 4170 |
| 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 2214 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1812 df-clab 2219 df-cleq 2225 df-clel 2228 df-nfc 2373 df-v 2814 df-un 3214 df-sn 3694 df-pr 3695 df-op 3697 df-opab 4171 df-mpt 4172 |
| This theorem is referenced by: fnmptfvd 5781 frecsuc 6637 pw2f1odclem 7086 xpmapen 7102 omp1eom 7385 fodjuomni 7439 fodjumkv 7450 nninfwlporlemd 7462 nninfwlpor 7464 nninfwlpoim 7469 nninfinfwlpo 7470 caucvgsrlembnd 8115 negiso 9228 infrenegsupex 9925 frec2uzsucd 10762 frecuzrdgdom 10779 frecuzrdgfun 10781 frecuzrdgsuct 10785 0tonninf 10801 1tonninf 10802 seq3f1oleml 10877 seq3f1o 10878 hashfz1 11144 xrnegiso 11943 infxrnegsupex 11944 climcvg1n 12031 summodc 12065 zsumdc 12066 fsum3 12069 fsumadd 12088 prodmodc 12260 zproddc 12261 fprodseq 12265 phimullem 12918 eulerthlemh 12924 eulerthlemth 12925 ennnfonelemnn0 13165 ennnfonelemr 13166 ctinfom 13171 grplactcnv 13807 expcn 15426 cdivcncfap 15461 expcncf 15466 ivthdich 15510 plyadd 15608 plymul 15609 plyco 15616 plycjlemc 15617 plycj 15618 dvply2g 15623 lgseisenlem3 15937 2sqlem1 15979 bj-charfunbi 16573 subctctexmid 16766 nninfsellemqall 16785 nninfomni 16789 nninffeq 16790 exmidsbthrlem 16794 exmidsbthr 16795 isomninn 16807 iswomninn 16827 ismkvnn 16830 |
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