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| Mirrors > Home > ILE Home > Th. List > nfeq2 | GIF version | ||
| Description: Hypothesis builder for equality, special case. (Contributed by Mario Carneiro, 10-Oct-2016.) |
| Ref | Expression |
|---|---|
| nfeq2.1 | ⊢ Ⅎ𝑥𝐵 |
| Ref | Expression |
|---|---|
| nfeq2 | ⊢ Ⅎ𝑥 𝐴 = 𝐵 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nfcv 2392 | . 2 ⊢ Ⅎ𝑥𝐴 | |
| 2 | nfeq2.1 | . 2 ⊢ Ⅎ𝑥𝐵 | |
| 3 | 1, 2 | nfeq 2400 | 1 ⊢ Ⅎ𝑥 𝐴 = 𝐵 |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: = wceq 1402 Ⅎwnf 1513 Ⅎwnfc 2379 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 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-cleq 2231 df-clel 2234 df-nfc 2381 |
| This theorem is used by: issetf 2829 eqvincf 2951 csbhypf 3186 nfpr 3759 intab 3999 nfmpt 4225 cbvmptf 4227 cbvmpt 4228 repizf2 4301 moop2 4394 eusvnf 4601 elrnmpt1 5035 iotaexab 5359 fmptco 5877 dfimafnf 5958 elabrex 5966 elabrexg 5967 nfmpo 6160 cbvmpox 6169 ovmpodxf 6217 fmpox 6440 f1od2 6475 nfrecs 6583 erovlem 6906 xpf1o 7150 mapxpen 7154 mkvprop 7504 cc3 7640 lble 9285 hashf1lem2 11307 nfsum1 12146 nfsum 12147 zsumdc 12175 fsum3 12178 fsum3cvg2 12185 fsum2dlemstep 12225 mertenslem2 12327 nfcprod1 12345 nfcprod 12346 zproddc 12370 fprod2dlemstep 12413 ctiunctlemfo 13387 ellimc3apf 15903 |
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