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| Mirrors > Home > ILE Home > Th. List > rexeqdv | Unicode version | ||
| Description: Equality deduction for restricted existential quantifier. (Contributed by NM, 14-Jan-2007.) |
| Ref | Expression |
|---|---|
| raleq1d.1 |
|
| Ref | Expression |
|---|---|
| rexeqdv |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | raleq1d.1 |
. 2
| |
| 2 | rexeq 2750 |
. 2
| |
| 3 | 1, 2 | syl 14 |
1
|
| Colors of variables: wff set class |
| This proof depends on syntax axioms:
|
| 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 df-rex 2534 |
| This theorem is used by: rexeqtrdv 2758 rexeqtrrdv 2760 rexeqbidv 2766 rexeqbidva 2768 fnunirn 5973 cbvexfo 5992 fival 7304 nninfwlpoimlemg 7515 nninfwlpoimlemginf 7516 nninfwlpoim 7519 nninfinfwlpo 7520 genipv 7876 exfzdc 10669 infssuzex 10676 nninfdcex 10682 zproddc 12362 ennnfonelemrnh 13356 grppropd 13871 dvdsrpropdg 14503 znunit 15043 cnpfval 15345 plyval 15882 uhgrvtxedgiedgb 16482 wlkvtxedg 16702 |
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