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Mirrors > Home > MPE Home > Th. List > domunsn | Structured version Visualization version Unicode version |
Description: Dominance over a set with one element added. (Contributed by Mario Carneiro, 18-May-2015.) |
Ref | Expression |
---|---|
domunsn |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | sdom0 8092 | . . . . 5 | |
2 | breq2 4657 | . . . . 5 | |
3 | 1, 2 | mtbiri 317 | . . . 4 |
4 | 3 | con2i 134 | . . 3 |
5 | neq0 3930 | . . 3 | |
6 | 4, 5 | sylib 208 | . 2 |
7 | domdifsn 8043 | . . . . 5 | |
8 | 7 | adantr 481 | . . . 4 |
9 | vex 3203 | . . . . . . 7 | |
10 | en2sn 8037 | . . . . . . 7 | |
11 | 9, 10 | mpan2 707 | . . . . . 6 |
12 | endom 7982 | . . . . . 6 | |
13 | 11, 12 | syl 17 | . . . . 5 |
14 | snprc 4253 | . . . . . . 7 | |
15 | 14 | biimpi 206 | . . . . . 6 |
16 | snex 4908 | . . . . . . 7 | |
17 | 16 | 0dom 8090 | . . . . . 6 |
18 | 15, 17 | syl6eqbr 4692 | . . . . 5 |
19 | 13, 18 | pm2.61i 176 | . . . 4 |
20 | incom 3805 | . . . . . 6 | |
21 | disjdif 4040 | . . . . . 6 | |
22 | 20, 21 | eqtri 2644 | . . . . 5 |
23 | undom 8048 | . . . . 5 | |
24 | 22, 23 | mpan2 707 | . . . 4 |
25 | 8, 19, 24 | sylancl 694 | . . 3 |
26 | uncom 3757 | . . . 4 | |
27 | simpr 477 | . . . . . 6 | |
28 | 27 | snssd 4340 | . . . . 5 |
29 | undif 4049 | . . . . 5 | |
30 | 28, 29 | sylib 208 | . . . 4 |
31 | 26, 30 | syl5eq 2668 | . . 3 |
32 | 25, 31 | breqtrd 4679 | . 2 |
33 | 6, 32 | exlimddv 1863 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wn 3 wi 4 wa 384 wceq 1483 wex 1704 wcel 1990 cvv 3200 cdif 3571 cun 3572 cin 3573 wss 3574 c0 3915 csn 4177 class class class wbr 4653 cen 7952 cdom 7953 csdm 7954 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-8 1992 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 ax-sep 4781 ax-nul 4789 ax-pow 4843 ax-pr 4906 ax-un 6949 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-3an 1039 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-eu 2474 df-mo 2475 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-ne 2795 df-ral 2917 df-rex 2918 df-rab 2921 df-v 3202 df-dif 3577 df-un 3579 df-in 3581 df-ss 3588 df-nul 3916 df-if 4087 df-pw 4160 df-sn 4178 df-pr 4180 df-op 4184 df-uni 4437 df-br 4654 df-opab 4713 df-id 5024 df-xp 5120 df-rel 5121 df-cnv 5122 df-co 5123 df-dm 5124 df-rn 5125 df-res 5126 df-ima 5127 df-suc 5729 df-fun 5890 df-fn 5891 df-f 5892 df-f1 5893 df-fo 5894 df-f1o 5895 df-1o 7560 df-er 7742 df-en 7956 df-dom 7957 df-sdom 7958 |
This theorem is referenced by: canthp1lem1 9474 |
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