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Mirrors > Home > ILE Home > Th. List > nfsbt | Unicode version |
Description: Closed form of nfsb 1822. (Contributed by Jim Kingdon, 9-May-2018.) |
Ref | Expression |
---|---|
nfsbt |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ax-17 1419 | . 2 | |
2 | nfsbxyt 1819 | . . . . 5 | |
3 | 2 | alimi 1344 | . . . 4 |
4 | nfsbxyt 1819 | . . . 4 | |
5 | 3, 4 | syl 14 | . . 3 |
6 | nfv 1421 | . . . . 5 | |
7 | 6 | sbco2 1839 | . . . 4 |
8 | 7 | nfbii 1362 | . . 3 |
9 | 5, 8 | sylib 127 | . 2 |
10 | 1, 9 | syl 14 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wal 1241 wnf 1349 wsb 1645 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 99 ax-ia2 100 ax-ia3 101 ax-io 630 ax-5 1336 ax-7 1337 ax-gen 1338 ax-ie1 1382 ax-ie2 1383 ax-8 1395 ax-10 1396 ax-11 1397 ax-i12 1398 ax-bndl 1399 ax-4 1400 ax-17 1419 ax-i9 1423 ax-ial 1427 ax-i5r 1428 |
This theorem depends on definitions: df-bi 110 df-nf 1350 df-sb 1646 |
This theorem is referenced by: nfsbd 1851 setindft 10090 |
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