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| Description: A set dominates its subsets. Theorem 16 of [Suppes] p. 94. |
| Ref | Expression |
|---|---|
| ssdomg |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | f1domg 3299 |
. 2
| |
| 2 | f1oi 2825 |
. . . . . . . 8
| |
| 3 | f1o3 2805 |
. . . . . . . 8
| |
| 4 | 2, 3 | mpbi 164 |
. . . . . . 7
|
| 5 | 4 | pm3.26i 257 |
. . . . . 6
|
| 6 | fof 2788 |
. . . . . 6
| |
| 7 | 5, 6 | ax-mp 6 |
. . . . 5
|
| 8 | fss 2759 |
. . . . 5
| |
| 9 | 7, 8 | mpan 518 |
. . . 4
|
| 10 | funi 2692 |
. . . . . 6
| |
| 11 | cnvi 2634 |
. . . . . . 7
| |
| 12 | funeq 2683 |
. . . . . . 7
| |
| 13 | 11, 12 | ax-mp 6 |
. . . . . 6
|
| 14 | 10, 13 | mpbir 165 |
. . . . 5
|
| 15 | funres11 2709 |
. . . . 5
| |
| 16 | 14, 15 | ax-mp 6 |
. . . 4
|
| 17 | 9, 16 | jctir 241 |
. . 3
|
| 18 | df-f1 2435 |
. . 3
| |
| 19 | 17, 18 | sylibr 175 |
. 2
|
| 20 | 1, 19 | syl5 22 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: ssdom2g 3312 xpdom3 3347 0dom 3366 mapdom1 3387 onomeneq 3414 nndomo 3416 omsdomnn 3424 unbnn 3435 fodom 3613 carddomi 3641 unxpdomlem 3649 sdomel 3653 ondomon 3662 carduni 3664 cardprc 3667 alephordlem2 3678 alephordi 3679 cdadom3 3729 znnen 4930 qnnen 4931 infxpidmlem1 4933 infxpidmlem8 4940 infxpidmlem11 4943 infxpidmlem12 4944 infunabs 4946 infdif 4948 infmap2 4953 alephexp1 4954 |
| This theorem was proved from axioms: ax-1 3 ax-2 4 ax-3 5 ax-mp 6 ax-4 673 ax-5 674 ax-6 675 ax-7 676 ax-gen 677 ax-8 798 ax-9 799 ax-10 800 ax-11 801 ax-12 802 ax-13 804 ax-14 805 ax-16 922 ax-17 925 ax-ext 1074 ax-rep 1075 ax-un 1076 ax-pow 1077 |
| This theorem depends on definitions: df-bi 128 df-or 197 df-an 198 df-ex 679 df-sb 853 df-eu 1009 df-mo 1010 df-clab 1093 df-cleq 1097 df-clel 1099 df-rex 1206 df-v 1349 df-dif 1489 df-un 1490 df-in 1491 df-ss 1492 df-nul 1708 df-pw 1799 df-sn 1811 df-pr 1812 df-op 1815 df-uni 1920 df-br 2063 df-opab 2098 df-id 2125 df-xp 2424 df-rel 2425 df-cnv 2426 df-co 2427 df-dm 2428 df-rn 2429 df-res 2430 df-ima 2431 df-fun 2432 df-fn 2433 df-f 2434 df-f1 2435 df-fo 2436 df-f1o 2437 df-en 3274 df-dom 3275 |