Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > MPE Home > Th. List > nfald2 | Structured version Visualization version Unicode version |
Description: Variation on nfald 2165 which adds the hypothesis that and are distinct in the inner subproof. (Contributed by Mario Carneiro, 8-Oct-2016.) |
Ref | Expression |
---|---|
nfald2.1 | |
nfald2.2 |
Ref | Expression |
---|---|
nfald2 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | nfald2.1 | . . . . 5 | |
2 | nfnae 2318 | . . . . 5 | |
3 | 1, 2 | nfan 1828 | . . . 4 |
4 | nfald2.2 | . . . 4 | |
5 | 3, 4 | nfald 2165 | . . 3 |
6 | 5 | ex 450 | . 2 |
7 | nfa1 2028 | . . 3 | |
8 | biidd 252 | . . . 4 | |
9 | 8 | drnf1 2329 | . . 3 |
10 | 7, 9 | mpbiri 248 | . 2 |
11 | 6, 10 | pm2.61d2 172 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wn 3 wi 4 wa 384 wal 1481 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-11 2034 ax-12 2047 ax-13 2246 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-tru 1486 df-ex 1705 df-nf 1710 |
This theorem is referenced by: nfexd2 2332 dvelimf 2334 nfeud2 2482 nfrald 2944 nfiotad 5854 nfixp 7927 |
Copyright terms: Public domain | W3C validator |