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Mirrors > Home > ILE Home > Th. List > frirrg | Unicode version |
Description: A well-founded relation is irreflexive. This is the case where exists. (Contributed by Jim Kingdon, 21-Sep-2021.) |
Ref | Expression |
---|---|
frirrg |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | simpr 109 | . . . 4 | |
2 | simpl3 987 | . . . 4 | |
3 | 1, 2 | sseldd 3129 | . . 3 |
4 | neldifsnd 3690 | . . 3 | |
5 | 3, 4 | pm2.65da 651 | . 2 |
6 | simplr 520 | . . . . . 6 | |
7 | simplr 520 | . . . . . . . . . . 11 | |
8 | 7 | ad2antrr 480 | . . . . . . . . . 10 |
9 | simpr 109 | . . . . . . . . . 10 | |
10 | 8, 9 | breqtrrd 3992 | . . . . . . . . 9 |
11 | breq1 3968 | . . . . . . . . . . 11 | |
12 | eleq1 2220 | . . . . . . . . . . 11 | |
13 | 11, 12 | imbi12d 233 | . . . . . . . . . 10 |
14 | simplr 520 | . . . . . . . . . 10 | |
15 | simpll3 1023 | . . . . . . . . . . 11 | |
16 | 15 | ad2antrr 480 | . . . . . . . . . 10 |
17 | 13, 14, 16 | rspcdva 2821 | . . . . . . . . 9 |
18 | 10, 17 | mpd 13 | . . . . . . . 8 |
19 | neldifsnd 3690 | . . . . . . . 8 | |
20 | 18, 19 | pm2.65da 651 | . . . . . . 7 |
21 | velsn 3577 | . . . . . . 7 | |
22 | 20, 21 | sylnibr 667 | . . . . . 6 |
23 | 6, 22 | eldifd 3112 | . . . . 5 |
24 | 23 | ex 114 | . . . 4 |
25 | 24 | ralrimiva 2530 | . . 3 |
26 | df-frind 4292 | . . . . . . . 8 FrFor | |
27 | df-frfor 4291 | . . . . . . . . 9 FrFor | |
28 | 27 | albii 1450 | . . . . . . . 8 FrFor |
29 | 26, 28 | bitri 183 | . . . . . . 7 |
30 | 29 | biimpi 119 | . . . . . 6 |
31 | 30 | 3ad2ant1 1003 | . . . . 5 |
32 | difexg 4105 | . . . . . . 7 | |
33 | eleq2 2221 | . . . . . . . . . . . . 13 | |
34 | 33 | imbi2d 229 | . . . . . . . . . . . 12 |
35 | 34 | ralbidv 2457 | . . . . . . . . . . 11 |
36 | eleq2 2221 | . . . . . . . . . . 11 | |
37 | 35, 36 | imbi12d 233 | . . . . . . . . . 10 |
38 | 37 | ralbidv 2457 | . . . . . . . . 9 |
39 | sseq2 3152 | . . . . . . . . 9 | |
40 | 38, 39 | imbi12d 233 | . . . . . . . 8 |
41 | 40 | spcgv 2799 | . . . . . . 7 |
42 | 32, 41 | syl 14 | . . . . . 6 |
43 | 42 | 3ad2ant2 1004 | . . . . 5 |
44 | 31, 43 | mpd 13 | . . . 4 |
45 | 44 | adantr 274 | . . 3 |
46 | 25, 45 | mpd 13 | . 2 |
47 | 5, 46 | mtand 655 | 1 |
Colors of variables: wff set class |
Syntax hints: wn 3 wi 4 wa 103 w3a 963 wal 1333 wceq 1335 wcel 2128 wral 2435 cvv 2712 cdif 3099 wss 3102 csn 3560 class class class wbr 3965 FrFor wfrfor 4287 wfr 4288 |
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 604 ax-in2 605 ax-io 699 ax-5 1427 ax-7 1428 ax-gen 1429 ax-ie1 1473 ax-ie2 1474 ax-8 1484 ax-10 1485 ax-11 1486 ax-i12 1487 ax-bndl 1489 ax-4 1490 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2139 ax-sep 4082 |
This theorem depends on definitions: df-bi 116 df-3an 965 df-tru 1338 df-nf 1441 df-sb 1743 df-clab 2144 df-cleq 2150 df-clel 2153 df-nfc 2288 df-ne 2328 df-ral 2440 df-v 2714 df-dif 3104 df-un 3106 df-in 3108 df-ss 3115 df-sn 3566 df-pr 3567 df-op 3569 df-br 3966 df-frfor 4291 df-frind 4292 |
This theorem is referenced by: efrirr 4313 wepo 4319 wetriext 4535 |
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