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| Description: Transitivity of dominance relation. Theorem 17 of [Suppes] p. 94. (Contributed by NM, 4-Jun-1998.) (Revised by Mario Carneiro, 15-Nov-2014.) |
| Ref | Expression |
|---|---|
| domtr |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | reldom 7017 |
. 2
| |
| 2 | vex 2824 |
. . . 4
| |
| 3 | 2 | brdom 7024 |
. . 3
|
| 4 | vex 2824 |
. . . 4
| |
| 5 | 4 | brdom 7024 |
. . 3
|
| 6 | eeanv 1992 |
. . . 4
| |
| 7 | f1co 5605 |
. . . . . . . 8
| |
| 8 | 7 | ancoms 268 |
. . . . . . 7
|
| 9 | vex 2824 |
. . . . . . . . 9
| |
| 10 | vex 2824 |
. . . . . . . . 9
| |
| 11 | 9, 10 | coex 5328 |
. . . . . . . 8
|
| 12 | f1eq1 5588 |
. . . . . . . 8
| |
| 13 | 11, 12 | spcev 2920 |
. . . . . . 7
|
| 14 | 8, 13 | syl 14 |
. . . . . 6
|
| 15 | 4 | brdom 7024 |
. . . . . 6
|
| 16 | 14, 15 | sylibr 134 |
. . . . 5
|
| 17 | 16 | exlimivv 1952 |
. . . 4
|
| 18 | 6, 17 | sylbir 135 |
. . 3
|
| 19 | 3, 5, 18 | syl2anb 291 |
. 2
|
| 20 | 1, 19 | vtoclr 4818 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-sep 4244 ax-pow 4306 ax-pr 4341 ax-un 4573 |
| This theorem depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ral 2533 df-rex 2534 df-v 2823 df-un 3224 df-in 3226 df-ss 3233 df-pw 3687 df-sn 3711 df-pr 3712 df-op 3714 df-uni 3931 df-br 4126 df-opab 4188 df-id 4433 df-xp 4775 df-rel 4776 df-cnv 4777 df-co 4778 df-dm 4779 df-rn 4780 df-fun 5374 df-fn 5375 df-f 5376 df-f1 5377 df-dom 7014 |
| This theorem is referenced by: endomtr 7067 domentr 7068 cnvct 7087 ssct 7104 nndomo 7155 infnfi 7189 xpct 13265 pw1ninf 16935 |
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