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Mirrors > Home > ILE Home > Th. List > ltpiord | Unicode version |
Description: Positive integer 'less than' in terms of ordinal membership. (Contributed by NM, 6-Feb-1996.) (Revised by Mario Carneiro, 28-Apr-2015.) |
Ref | Expression |
---|---|
ltpiord |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-lti 6497 |
. . 3
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2 | 1 | breqi 3791 |
. 2
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3 | brinxp 4426 |
. . 3
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4 | epelg 4045 |
. . . 4
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5 | 4 | adantl 271 |
. . 3
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6 | 3, 5 | bitr3d 188 |
. 2
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7 | 2, 6 | syl5bb 190 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 104 ax-ia2 105 ax-ia3 106 ax-io 662 ax-5 1376 ax-7 1377 ax-gen 1378 ax-ie1 1422 ax-ie2 1423 ax-8 1435 ax-10 1436 ax-11 1437 ax-i12 1438 ax-bndl 1439 ax-4 1440 ax-14 1445 ax-17 1459 ax-i9 1463 ax-ial 1467 ax-i5r 1468 ax-ext 2063 ax-sep 3896 ax-pow 3948 ax-pr 3964 |
This theorem depends on definitions: df-bi 115 df-3an 921 df-tru 1287 df-nf 1390 df-sb 1686 df-eu 1944 df-mo 1945 df-clab 2068 df-cleq 2074 df-clel 2077 df-nfc 2208 df-ral 2353 df-rex 2354 df-v 2603 df-un 2977 df-in 2979 df-ss 2986 df-pw 3384 df-sn 3404 df-pr 3405 df-op 3407 df-br 3786 df-opab 3840 df-eprel 4044 df-xp 4369 df-lti 6497 |
This theorem is referenced by: ltsopi 6510 pitric 6511 pitri3or 6512 ltdcpi 6513 ltexpi 6527 ltapig 6528 ltmpig 6529 1lt2pi 6530 nlt1pig 6531 archnqq 6607 prarloclemarch2 6609 prarloclemlt 6683 prarloclemn 6689 |
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