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| Mirrors > Home > MPE Home > Th. List > nfeq1 | Structured version Visualization version GIF version | ||
| Description: Hypothesis builder for equality, special case. (Contributed by Mario Carneiro, 10-Oct-2016.) |
| Ref | Expression |
|---|---|
| nfeq1.1 | ⊢ Ⅎ𝑥𝐴 |
| Ref | Expression |
|---|---|
| nfeq1 | ⊢ Ⅎ𝑥 𝐴 = 𝐵 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nfeq1.1 | . 2 ⊢ Ⅎ𝑥𝐴 | |
| 2 | nfcv 2922 | . 2 ⊢ Ⅎ𝑥𝐵 | |
| 3 | 1, 2 | nfeq 2935 | 1 ⊢ Ⅎ𝑥 𝐴 = 𝐵 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1570 Ⅎwnf 1816 Ⅎwnfc 2907 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2732 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-tru 1573 df-ex 1813 df-nf 1817 df-cleq 2752 df-nfc 2909 |
| This theorem is used by: euabsn 4687 invdisjrab 5090 disjxun 5101 iunopeqop 5498 iunopeqopOLD 5499 fvelimad 6945 opabiotafun 6958 fvmptt 7007 eusvobj2 7405 oprabv 7473 ovmpodv2 7571 ov3 7576 dom2lem 8998 ttrcltr 9695 pwfseqlem2 10668 fsumf1o 15809 isummulc2 15848 fsum00 15885 isumshft 15928 zprod 16024 fprodf1o 16033 prodss 16034 fprodle 16083 iserodd 16927 yonedalem4b 18364 gsum2d2lem 20100 gsummptnn0fz 20113 gsummoncoe1 22533 elptr2 23800 ovoliunnul 25735 mbfinf 25893 itg2splitlem 25976 dgrle 26469 noinfbnd1 27965 disjabrex 33055 disjabrexf 33056 disjunsn 33067 voliune 34740 volfiniune 34741 bnj958 35449 bnj1491 35566 finminlem 36937 poimirlem23 38392 poimirlem28 38397 cdleme43fsv1snlem 41293 ltrniotaval 41454 cdlemksv2 41720 cdlemkuv2 41740 cdlemk36 41786 cdlemkid 41809 cdlemk19x 41816 eq0rabdioph 43621 monotoddzz 43784 disjinfi 46024 dvnprodlem1 46774 stoweidlem28 46856 stoweidlem48 46876 stoweidlem58 46886 etransclem32 47094 sge0f1o 47210 sge0gtfsumgt 47271 voliunsge0lem 47300 sssmf 47566 |
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