Mathbox for Thierry Arnoux |
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Mirrors > Home > MPE Home > Th. List > Mathboxes > 2reuswap2 | Structured version Visualization version Unicode version |
Description: A condition allowing swap of uniqueness and existential quantifiers. (Contributed by Thierry Arnoux, 7-Apr-2017.) |
Ref | Expression |
---|---|
2reuswap2 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-ral 2917 | . . 3 | |
2 | moanimv 2531 | . . . 4 | |
3 | 2 | albii 1747 | . . 3 |
4 | 1, 3 | bitr4i 267 | . 2 |
5 | 2euswap 2548 | . . 3 | |
6 | df-reu 2919 | . . . 4 | |
7 | r19.42v 3092 | . . . . . . 7 | |
8 | df-rex 2918 | . . . . . . 7 | |
9 | 7, 8 | bitr3i 266 | . . . . . 6 |
10 | an12 838 | . . . . . . 7 | |
11 | 10 | exbii 1774 | . . . . . 6 |
12 | 9, 11 | bitri 264 | . . . . 5 |
13 | 12 | eubii 2492 | . . . 4 |
14 | 6, 13 | bitri 264 | . . 3 |
15 | df-reu 2919 | . . . 4 | |
16 | r19.42v 3092 | . . . . . 6 | |
17 | df-rex 2918 | . . . . . 6 | |
18 | 16, 17 | bitr3i 266 | . . . . 5 |
19 | 18 | eubii 2492 | . . . 4 |
20 | 15, 19 | bitri 264 | . . 3 |
21 | 5, 14, 20 | 3imtr4g 285 | . 2 |
22 | 4, 21 | sylbi 207 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wi 4 wa 384 wal 1481 wex 1704 wcel 1990 weu 2470 wmo 2471 wral 2912 wrex 2913 wreu 2914 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-tru 1486 df-ex 1705 df-nf 1710 df-eu 2474 df-mo 2475 df-ral 2917 df-rex 2918 df-reu 2919 |
This theorem is referenced by: reuxfr3d 29329 |
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