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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 2927 | . 2 ⊢ Ⅎ𝑥𝐵 | |
| 3 | 1, 2 | nfeq 2940 | 1 ⊢ Ⅎ𝑥 𝐴 = 𝐵 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1570 Ⅎwnf 1816 Ⅎwnfc 2912 |
| 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 2156 ax-10 2179 ax-11 2195 ax-12 2216 ax-ext 2737 |
| 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 2757 df-nfc 2914 |
| This theorem is used by: euabsn 4694 invdisjrab 5098 disjxun 5109 iunopeqop 5506 iunopeqopOLD 5507 fvelimad 6952 opabiotafun 6965 fvmptt 7014 eusvobj2 7408 oprabv 7476 ovmpodv2 7574 ov3 7579 dom2lem 8991 ttrcltr 9688 pwfseqlem2 10655 fsumf1o 15793 isummulc2 15832 fsum00 15869 isumshft 15912 zprod 16010 fprodf1o 16019 prodss 16020 fprodle 16069 iserodd 16913 yonedalem4b 18350 gsum2d2lem 20067 gsummptnn0fz 20080 gsummoncoe1 22498 elptr2 23762 ovoliunnul 25697 mbfinf 25855 itg2splitlem 25938 dgrle 26431 noinfbnd1 27924 disjabrex 32974 disjabrexf 32975 disjunsn 32986 voliune 34660 volfiniune 34661 bnj958 35369 bnj1491 35486 finminlem 36862 poimirlem23 38327 poimirlem28 38332 cdleme43fsv1snlem 41227 ltrniotaval 41388 cdlemksv2 41654 cdlemkuv2 41674 cdlemk36 41720 cdlemkid 41743 cdlemk19x 41750 eq0rabdioph 43540 monotoddzz 43703 disjinfi 45943 dvnprodlem1 46693 stoweidlem28 46775 stoweidlem48 46795 stoweidlem58 46805 etransclem32 47013 sge0f1o 47129 sge0gtfsumgt 47190 voliunsge0lem 47219 sssmf 47485 |
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