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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 2372 | . 2 ⊢ Ⅎ𝑦𝐵 | |
| 2 | nfcv 2372 | . 2 ⊢ Ⅎ𝑥𝐶 | |
| 3 | cbvmptv.1 | . 2 ⊢ (𝑥 = 𝑦 → 𝐵 = 𝐶) | |
| 4 | 1, 2, 3 | cbvmpt 4179 | 1 ⊢ (𝑥 ∈ 𝐴 ↦ 𝐵) = (𝑦 ∈ 𝐴 ↦ 𝐶) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1395 ↦ cmpt 4145 |
| 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 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-ext 2211 |
| This theorem depends on definitions: df-bi 117 df-3an 1004 df-tru 1398 df-nf 1507 df-sb 1809 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-v 2801 df-un 3201 df-sn 3672 df-pr 3673 df-op 3675 df-opab 4146 df-mpt 4147 |
| This theorem is referenced by: fnmptfvd 5744 frecsuc 6564 pw2f1odclem 7008 xpmapen 7024 omp1eom 7278 fodjuomni 7332 fodjumkv 7343 nninfwlporlemd 7355 nninfwlpor 7357 nninfwlpoim 7362 nninfinfwlpo 7363 caucvgsrlembnd 8004 negiso 9118 infrenegsupex 9806 frec2uzsucd 10640 frecuzrdgdom 10657 frecuzrdgfun 10659 frecuzrdgsuct 10663 0tonninf 10679 1tonninf 10680 seq3f1oleml 10755 seq3f1o 10756 hashfz1 11022 xrnegiso 11794 infxrnegsupex 11795 climcvg1n 11882 summodc 11915 zsumdc 11916 fsum3 11919 fsumadd 11938 prodmodc 12110 zproddc 12111 fprodseq 12115 phimullem 12768 eulerthlemh 12774 eulerthlemth 12775 ennnfonelemnn0 13014 ennnfonelemr 13015 ctinfom 13020 grplactcnv 13656 expcn 15264 cdivcncfap 15299 expcncf 15304 ivthdich 15348 plyadd 15446 plymul 15447 plyco 15454 plycjlemc 15455 plycj 15456 dvply2g 15461 lgseisenlem3 15772 2sqlem1 15814 bj-charfunbi 16283 subctctexmid 16479 nninfsellemqall 16495 nninfomni 16499 nninffeq 16500 exmidsbthrlem 16504 exmidsbthr 16505 isomninn 16513 iswomninn 16532 ismkvnn 16535 |
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