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Mirrors > Home > ILE Home > Th. List > moexexdc | Unicode version |
Description: "At most one" double quantification. (Contributed by Jim Kingdon, 5-Jul-2018.) |
Ref | Expression |
---|---|
moexexdc.1 |
Ref | Expression |
---|---|
moexexdc | DECID |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-dc 820 | . 2 DECID | |
2 | hbmo1 2035 | . . . . . 6 | |
3 | hba1 1520 | . . . . . . 7 | |
4 | hbe1 1471 | . . . . . . . 8 | |
5 | 4 | hbmo 2036 | . . . . . . 7 |
6 | 3, 5 | hbim 1524 | . . . . . 6 |
7 | 2, 6 | hbim 1524 | . . . . 5 |
8 | moexexdc.1 | . . . . . . . 8 | |
9 | 8 | nfri 1499 | . . . . . . 7 |
10 | 9 | hbmo 2036 | . . . . . . 7 |
11 | mopick 2075 | . . . . . . . . 9 | |
12 | 11 | ex 114 | . . . . . . . 8 |
13 | 12 | com3r 79 | . . . . . . 7 |
14 | 9, 10, 13 | alrimdh 1455 | . . . . . 6 |
15 | moim 2061 | . . . . . . 7 | |
16 | 15 | spsd 1518 | . . . . . 6 |
17 | 14, 16 | syl6 33 | . . . . 5 |
18 | 7, 17 | exlimih 1572 | . . . 4 |
19 | 9 | hbex 1615 | . . . . . . . . 9 |
20 | exsimpl 1596 | . . . . . . . . 9 | |
21 | 19, 20 | exlimih 1572 | . . . . . . . 8 |
22 | 21 | con3i 621 | . . . . . . 7 |
23 | mon 2026 | . . . . . . 7 | |
24 | 22, 23 | syl 14 | . . . . . 6 |
25 | 24 | a1d 22 | . . . . 5 |
26 | 25 | a1d 22 | . . . 4 |
27 | 18, 26 | jaoi 705 | . . 3 |
28 | 27 | impd 252 | . 2 |
29 | 1, 28 | sylbi 120 | 1 DECID |
Colors of variables: wff set class |
Syntax hints: wn 3 wi 4 wa 103 wo 697 DECID wdc 819 wal 1329 wnf 1436 wex 1468 wmo 1998 |
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-in1 603 ax-in2 604 ax-io 698 ax-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-10 1483 ax-11 1484 ax-i12 1485 ax-bndl 1486 ax-4 1487 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 |
This theorem depends on definitions: df-bi 116 df-dc 820 df-tru 1334 df-nf 1437 df-sb 1736 df-eu 2000 df-mo 2001 |
This theorem is referenced by: 2moswapdc 2087 |
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