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Mirrors > Home > ILE Home > Th. List > Mathboxes > strcollnft | Unicode version |
Description: Closed form of strcollnf 10110. Version of ax-strcoll 10107 with one DV condition removed, the other DV condition replaced by a non-freeness antecedent, and without initial universal quantifier. (Contributed by BJ, 21-Oct-2019.) |
Ref | Expression |
---|---|
strcollnft |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | strcoll2 10108 | . 2 | |
2 | nfnf1 1436 | . . . . 5 | |
3 | 2 | nfal 1468 | . . . 4 |
4 | 3 | nfal 1468 | . . 3 |
5 | nfa2 1471 | . . . 4 | |
6 | nfvd 1422 | . . . . 5 | |
7 | nfa1 1434 | . . . . . . . 8 | |
8 | nfcvd 2179 | . . . . . . . 8 | |
9 | sp 1401 | . . . . . . . 8 | |
10 | 7, 8, 9 | nfrexdxy 2357 | . . . . . . 7 |
11 | 10 | sps 1430 | . . . . . 6 |
12 | 11 | alcoms 1365 | . . . . 5 |
13 | 6, 12 | nfbid 1480 | . . . 4 |
14 | 5, 13 | nfald 1643 | . . 3 |
15 | nfv 1421 | . . . . . 6 | |
16 | 5, 15 | nfan 1457 | . . . . 5 |
17 | elequ2 1601 | . . . . . . 7 | |
18 | 17 | adantl 262 | . . . . . 6 |
19 | 18 | bibi1d 222 | . . . . 5 |
20 | 16, 19 | albid 1506 | . . . 4 |
21 | 20 | ex 108 | . . 3 |
22 | 4, 14, 21 | cbvexd 1802 | . 2 |
23 | 1, 22 | syl5ib 143 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 97 wb 98 wal 1241 wnf 1349 wex 1381 wral 2306 wrex 2307 |
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-14 1405 ax-17 1419 ax-i9 1423 ax-ial 1427 ax-i5r 1428 ax-ext 2022 ax-strcoll 10107 |
This theorem depends on definitions: df-bi 110 df-tru 1246 df-nf 1350 df-sb 1646 df-cleq 2033 df-clel 2036 df-nfc 2167 df-ral 2311 df-rex 2312 |
This theorem is referenced by: strcollnf 10110 |
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