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Mirrors > Home > ILE Home > Th. List > exdistrfor | Unicode version |
Description: Distribution of existential quantifiers, with a bound-variable hypothesis saying that is not free in , but can be free in (and there is no distinct variable condition on and ). (Contributed by Jim Kingdon, 25-Feb-2018.) |
Ref | Expression |
---|---|
exdistrfor.1 |
Ref | Expression |
---|---|
exdistrfor |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | exdistrfor.1 | . 2 | |
2 | biidd 161 | . . . . . 6 | |
3 | 2 | drex1 1679 | . . . . 5 |
4 | 3 | drex2 1620 | . . . 4 |
5 | hbe1 1384 | . . . . . 6 | |
6 | 5 | 19.9h 1534 | . . . . 5 |
7 | 19.8a 1482 | . . . . . . 7 | |
8 | 7 | anim2i 324 | . . . . . 6 |
9 | 8 | eximi 1491 | . . . . 5 |
10 | 6, 9 | sylbi 114 | . . . 4 |
11 | 4, 10 | syl6bir 153 | . . 3 |
12 | ax-ial 1427 | . . . 4 | |
13 | 19.40 1522 | . . . . . 6 | |
14 | 19.9t 1533 | . . . . . . . 8 | |
15 | 14 | biimpd 132 | . . . . . . 7 |
16 | 15 | anim1d 319 | . . . . . 6 |
17 | 13, 16 | syl5 28 | . . . . 5 |
18 | 17 | sps 1430 | . . . 4 |
19 | 12, 18 | eximdh 1502 | . . 3 |
20 | 11, 19 | jaoi 636 | . 2 |
21 | 1, 20 | ax-mp 7 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 97 wo 629 wal 1241 wnf 1349 wex 1381 |
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-4 1400 ax-17 1419 ax-i9 1423 ax-ial 1427 |
This theorem depends on definitions: df-bi 110 df-nf 1350 |
This theorem is referenced by: oprabidlem 5536 |
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