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Mirrors > Home > ILE Home > Th. List > ssdomg | Unicode version |
Description: A set dominates its subsets. Theorem 16 of [Suppes] p. 94. (Contributed by NM, 19-Jun-1998.) (Revised by Mario Carneiro, 24-Jun-2015.) |
Ref | Expression |
---|---|
ssdomg |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ssexg 4121 | . . 3 | |
2 | simpr 109 | . . 3 | |
3 | f1oi 5470 | . . . . . . . . . 10 | |
4 | dff1o3 5438 | . . . . . . . . . 10 | |
5 | 3, 4 | mpbi 144 | . . . . . . . . 9 |
6 | 5 | simpli 110 | . . . . . . . 8 |
7 | fof 5410 | . . . . . . . 8 | |
8 | 6, 7 | ax-mp 5 | . . . . . . 7 |
9 | fss 5349 | . . . . . . 7 | |
10 | 8, 9 | mpan 421 | . . . . . 6 |
11 | funi 5220 | . . . . . . . 8 | |
12 | cnvi 5008 | . . . . . . . . 9 | |
13 | 12 | funeqi 5209 | . . . . . . . 8 |
14 | 11, 13 | mpbir 145 | . . . . . . 7 |
15 | funres11 5260 | . . . . . . 7 | |
16 | 14, 15 | ax-mp 5 | . . . . . 6 |
17 | 10, 16 | jctir 311 | . . . . 5 |
18 | df-f1 5193 | . . . . 5 | |
19 | 17, 18 | sylibr 133 | . . . 4 |
20 | 19 | adantr 274 | . . 3 |
21 | f1dom2g 6722 | . . 3 | |
22 | 1, 2, 20, 21 | syl3anc 1228 | . 2 |
23 | 22 | expcom 115 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 103 wcel 2136 cvv 2726 wss 3116 class class class wbr 3982 cid 4266 ccnv 4603 cres 4606 wfun 5182 wf 5184 wf1 5185 wfo 5186 wf1o 5187 cdom 6705 |
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 699 ax-5 1435 ax-7 1436 ax-gen 1437 ax-ie1 1481 ax-ie2 1482 ax-8 1492 ax-10 1493 ax-11 1494 ax-i12 1495 ax-bndl 1497 ax-4 1498 ax-17 1514 ax-i9 1518 ax-ial 1522 ax-i5r 1523 ax-13 2138 ax-14 2139 ax-ext 2147 ax-sep 4100 ax-pow 4153 ax-pr 4187 ax-un 4411 |
This theorem depends on definitions: df-bi 116 df-3an 970 df-tru 1346 df-nf 1449 df-sb 1751 df-eu 2017 df-mo 2018 df-clab 2152 df-cleq 2158 df-clel 2161 df-nfc 2297 df-ral 2449 df-rex 2450 df-v 2728 df-un 3120 df-in 3122 df-ss 3129 df-pw 3561 df-sn 3582 df-pr 3583 df-op 3585 df-uni 3790 df-br 3983 df-opab 4044 df-id 4271 df-xp 4610 df-rel 4611 df-cnv 4612 df-co 4613 df-dm 4614 df-rn 4615 df-res 4616 df-ima 4617 df-fun 5190 df-fn 5191 df-f 5192 df-f1 5193 df-fo 5194 df-f1o 5195 df-dom 6708 |
This theorem is referenced by: cnvct 6775 ssct 6784 xpdom3m 6800 0domg 6803 mapdom1g 6813 phplem4dom 6828 nndomo 6830 phpm 6831 fict 6834 domfiexmid 6844 infnfi 6861 exmidfodomrlemr 7158 exmidfodomrlemrALT 7159 pw1dom2 7183 fihashss 10729 phicl2 12146 phibnd 12149 qnnen 12364 sbthom 13905 |
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