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Mirrors > Home > ILE Home > Th. List > ee8anv | Unicode version |
Description: Rearrange existential quantifiers. (Contributed by Jim Kingdon, 23-Nov-2019.) |
Ref | Expression |
---|---|
ee8anv |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | exrot4 1679 | . . 3 | |
2 | 1 | 2exbii 1594 | . 2 |
3 | ee4anv 1922 | . . . 4 | |
4 | 3 | 2exbii 1594 | . . 3 |
5 | 4 | 2exbii 1594 | . 2 |
6 | ee4anv 1922 | . 2 | |
7 | 2, 5, 6 | 3bitri 205 | 1 |
Colors of variables: wff set class |
Syntax hints: wa 103 wb 104 wex 1480 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-5 1435 ax-7 1436 ax-gen 1437 ax-ie1 1481 ax-ie2 1482 ax-4 1498 ax-17 1514 ax-ial 1522 |
This theorem depends on definitions: df-bi 116 df-nf 1449 |
This theorem is referenced by: enq0tr 7375 |
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