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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 2374 | . 2 ⊢ Ⅎ𝑦𝐵 | |
| 2 | nfcv 2374 | . 2 ⊢ Ⅎ𝑥𝐶 | |
| 3 | cbvmptv.1 | . 2 ⊢ (𝑥 = 𝑦 → 𝐵 = 𝐶) | |
| 4 | 1, 2, 3 | cbvmpt 4184 | 1 ⊢ (𝑥 ∈ 𝐴 ↦ 𝐵) = (𝑦 ∈ 𝐴 ↦ 𝐶) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1397 ↦ cmpt 4150 |
| 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 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-ext 2213 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-nf 1509 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-v 2804 df-un 3204 df-sn 3675 df-pr 3676 df-op 3678 df-opab 4151 df-mpt 4152 |
| This theorem is referenced by: fnmptfvd 5751 frecsuc 6573 pw2f1odclem 7020 xpmapen 7036 omp1eom 7294 fodjuomni 7348 fodjumkv 7359 nninfwlporlemd 7371 nninfwlpor 7373 nninfwlpoim 7378 nninfinfwlpo 7379 caucvgsrlembnd 8021 negiso 9135 infrenegsupex 9828 frec2uzsucd 10664 frecuzrdgdom 10681 frecuzrdgfun 10683 frecuzrdgsuct 10687 0tonninf 10703 1tonninf 10704 seq3f1oleml 10779 seq3f1o 10780 hashfz1 11046 xrnegiso 11827 infxrnegsupex 11828 climcvg1n 11915 summodc 11949 zsumdc 11950 fsum3 11953 fsumadd 11972 prodmodc 12144 zproddc 12145 fprodseq 12149 phimullem 12802 eulerthlemh 12808 eulerthlemth 12809 ennnfonelemnn0 13048 ennnfonelemr 13049 ctinfom 13054 grplactcnv 13690 expcn 15299 cdivcncfap 15334 expcncf 15339 ivthdich 15383 plyadd 15481 plymul 15482 plyco 15489 plycjlemc 15490 plycj 15491 dvply2g 15496 lgseisenlem3 15807 2sqlem1 15849 bj-charfunbi 16432 subctctexmid 16627 nninfsellemqall 16643 nninfomni 16647 nninffeq 16648 exmidsbthrlem 16652 exmidsbthr 16653 isomninn 16661 iswomninn 16680 ismkvnn 16683 |
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