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Mirrors > Home > MPE Home > Th. List > nf5 | Structured version Visualization version Unicode version |
Description: Alternate definition of df-nf 1710. (Contributed by Mario Carneiro, 11-Aug-2016.) df-nf 1710 changed. (Revised by Wolf Lammen, 11-Sep-2021.) |
Ref | Expression |
---|---|
nf5 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-nf 1710 | . 2 | |
2 | nfa1 2028 | . . 3 | |
3 | 2 | 19.23 2080 | . 2 |
4 | 1, 3 | bitr4i 267 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wi 4 wb 196 wal 1481 wex 1704 wnf 1708 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-10 2019 ax-12 2047 |
This theorem depends on definitions: df-bi 197 df-or 385 df-ex 1705 df-nf 1710 |
This theorem is referenced by: nfnf1OLD 2159 drnf1 2329 axie2 2597 xfree 29303 bj-nfdt0 32685 bj-nfalt 32702 bj-nfext 32703 bj-nfs1t 32714 bj-drnf1v 32750 bj-sbnf 32828 wl-sbnf1 33336 hbexg 38772 |
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