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Mirrors > Home > NFE Home > Th. List > nfunid | Unicode version |
Description: Deduction version of nfuni 3897. (Contributed by NM, 18-Feb-2013.) |
Ref | Expression |
---|---|
nfunid.3 |
Ref | Expression |
---|---|
nfunid |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | dfuni2 3893 | . 2 | |
2 | nfv 1619 | . . 3 | |
3 | nfv 1619 | . . . 4 | |
4 | nfunid.3 | . . . 4 | |
5 | nfvd 1620 | . . . 4 | |
6 | 3, 4, 5 | nfrexd 2666 | . . 3 |
7 | 2, 6 | nfabd 2508 | . 2 |
8 | 1, 7 | nfcxfrd 2487 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wi 4 wcel 1710 cab 2339 wnfc 2476 wrex 2615 cuni 3891 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-3 7 ax-mp 8 ax-gen 1546 ax-5 1557 ax-17 1616 ax-9 1654 ax-8 1675 ax-6 1729 ax-7 1734 ax-11 1746 ax-12 1925 ax-ext 2334 |
This theorem depends on definitions: df-bi 177 df-an 360 df-tru 1319 df-ex 1542 df-nf 1545 df-sb 1649 df-clab 2340 df-cleq 2346 df-clel 2349 df-nfc 2478 df-ral 2619 df-rex 2620 df-uni 3892 |
This theorem is referenced by: dfnfc2 3909 nfiotad 4342 |
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