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Mirrors > Home > ILE Home > Th. List > reg3exmid | Unicode version |
Description: If any inhabited set satisfying df-wetr 4256 for has a minimal element, excluded middle follows. (Contributed by Jim Kingdon, 3-Oct-2021.) |
Ref | Expression |
---|---|
reg3exmid.1 |
Ref | Expression |
---|---|
reg3exmid |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eqid 2139 | . . 3 | |
2 | 1 | regexmidlemm 4447 | . 2 |
3 | 1 | reg3exmidlemwe 4493 | . . 3 |
4 | pp0ex 4113 | . . . . 5 | |
5 | 4 | rabex 4072 | . . . 4 |
6 | weeq2 4279 | . . . . . 6 | |
7 | eleq2 2203 | . . . . . . 7 | |
8 | 7 | exbidv 1797 | . . . . . 6 |
9 | 6, 8 | anbi12d 464 | . . . . 5 |
10 | raleq 2626 | . . . . . 6 | |
11 | 10 | rexeqbi1dv 2635 | . . . . 5 |
12 | 9, 11 | imbi12d 233 | . . . 4 |
13 | reg3exmid.1 | . . . 4 | |
14 | 5, 12, 13 | vtocl 2740 | . . 3 |
15 | 3, 14 | mpan 420 | . 2 |
16 | 1 | reg2exmidlema 4449 | . 2 |
17 | 2, 15, 16 | mp2b 8 | 1 |
Colors of variables: wff set class |
Syntax hints: wn 3 wi 4 wa 103 wo 697 wceq 1331 wex 1468 wcel 1480 wral 2416 wrex 2417 crab 2420 wss 3071 c0 3363 csn 3527 cpr 3528 cep 4209 wwe 4252 |
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-14 1492 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2121 ax-sep 4046 ax-nul 4054 ax-pow 4098 ax-pr 4131 ax-setind 4452 |
This theorem depends on definitions: df-bi 116 df-3an 964 df-tru 1334 df-nf 1437 df-sb 1736 df-eu 2002 df-mo 2003 df-clab 2126 df-cleq 2132 df-clel 2135 df-nfc 2270 df-ne 2309 df-ral 2421 df-rex 2422 df-rab 2425 df-v 2688 df-dif 3073 df-un 3075 df-in 3077 df-ss 3084 df-nul 3364 df-pw 3512 df-sn 3533 df-pr 3534 df-op 3536 df-br 3930 df-opab 3990 df-eprel 4211 df-frfor 4253 df-frind 4254 df-wetr 4256 |
This theorem is referenced by: (None) |
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