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Mirrors > Home > ILE Home > Th. List > sbal2 | Unicode version |
Description: Move quantifier in and out of substitution. (Contributed by NM, 2-Jan-2002.) |
Ref | Expression |
---|---|
sbal2 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | alcom 1367 | . . 3 | |
2 | hbnae 1609 | . . . 4 | |
3 | dveeq1 1895 | . . . . . . 7 | |
4 | 3 | alimi 1344 | . . . . . 6 |
5 | 4 | hbnaes 1611 | . . . . 5 |
6 | 19.21ht 1473 | . . . . 5 | |
7 | 5, 6 | syl 14 | . . . 4 |
8 | 2, 7 | albidh 1369 | . . 3 |
9 | 1, 8 | syl5rbbr 184 | . 2 |
10 | sb6 1766 | . 2 | |
11 | sb6 1766 | . . 3 | |
12 | 11 | albii 1359 | . 2 |
13 | 9, 10, 12 | 3bitr4g 212 | 1 |
Colors of variables: wff set class |
Syntax hints: wn 3 wi 4 wb 98 wal 1241 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-in1 544 ax-in2 545 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 ax-i5r 1428 |
This theorem depends on definitions: df-bi 110 df-tru 1246 df-fal 1249 df-nf 1350 df-sb 1646 |
This theorem is referenced by: (None) |
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