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Mirrors > Home > ILE Home > Th. List > qfto | Unicode version |
Description: A quantifier-free way of expressing the total order predicate. (Contributed by Mario Carneiro, 22-Nov-2013.) |
Ref | Expression |
---|---|
qfto |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | opelxp 4641 | . . . 4 | |
2 | brun 4040 | . . . . 5 | |
3 | df-br 3990 | . . . . 5 | |
4 | vex 2733 | . . . . . . 7 | |
5 | vex 2733 | . . . . . . 7 | |
6 | 4, 5 | brcnv 4794 | . . . . . 6 |
7 | 6 | orbi2i 757 | . . . . 5 |
8 | 2, 3, 7 | 3bitr3i 209 | . . . 4 |
9 | 1, 8 | imbi12i 238 | . . 3 |
10 | 9 | 2albii 1464 | . 2 |
11 | relxp 4720 | . . 3 | |
12 | ssrel 4699 | . . 3 | |
13 | 11, 12 | ax-mp 5 | . 2 |
14 | r2al 2489 | . 2 | |
15 | 10, 13, 14 | 3bitr4i 211 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 103 wb 104 wo 703 wal 1346 wcel 2141 wral 2448 cun 3119 wss 3121 cop 3586 class class class wbr 3989 cxp 4609 ccnv 4610 wrel 4616 |
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-io 704 ax-5 1440 ax-7 1441 ax-gen 1442 ax-ie1 1486 ax-ie2 1487 ax-8 1497 ax-10 1498 ax-11 1499 ax-i12 1500 ax-bndl 1502 ax-4 1503 ax-17 1519 ax-i9 1523 ax-ial 1527 ax-i5r 1528 ax-14 2144 ax-ext 2152 ax-sep 4107 ax-pow 4160 ax-pr 4194 |
This theorem depends on definitions: df-bi 116 df-3an 975 df-tru 1351 df-nf 1454 df-sb 1756 df-eu 2022 df-mo 2023 df-clab 2157 df-cleq 2163 df-clel 2166 df-nfc 2301 df-ral 2453 df-rex 2454 df-v 2732 df-un 3125 df-in 3127 df-ss 3134 df-pw 3568 df-sn 3589 df-pr 3590 df-op 3592 df-br 3990 df-opab 4051 df-xp 4617 df-rel 4618 df-cnv 4619 |
This theorem is referenced by: (None) |
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