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Mirrors > Home > ILE Home > Th. List > bren | Unicode version |
Description: Equinumerosity relation. (Contributed by NM, 15-Jun-1998.) |
Ref | Expression |
---|---|
bren |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | encv 6250 | . 2 | |
2 | f1ofn 5147 | . . . . 5 | |
3 | fndm 5018 | . . . . . 6 | |
4 | vex 2604 | . . . . . . 7 | |
5 | 4 | dmex 4616 | . . . . . 6 |
6 | 3, 5 | syl6eqelr 2170 | . . . . 5 |
7 | 2, 6 | syl 14 | . . . 4 |
8 | f1ofo 5153 | . . . . . 6 | |
9 | forn 5129 | . . . . . 6 | |
10 | 8, 9 | syl 14 | . . . . 5 |
11 | 4 | rnex 4617 | . . . . 5 |
12 | 10, 11 | syl6eqelr 2170 | . . . 4 |
13 | 7, 12 | jca 300 | . . 3 |
14 | 13 | exlimiv 1529 | . 2 |
15 | f1oeq2 5138 | . . . 4 | |
16 | 15 | exbidv 1746 | . . 3 |
17 | f1oeq3 5139 | . . . 4 | |
18 | 17 | exbidv 1746 | . . 3 |
19 | df-en 6245 | . . 3 | |
20 | 16, 18, 19 | brabg 4024 | . 2 |
21 | 1, 14, 20 | pm5.21nii 652 | 1 |
Colors of variables: wff set class |
Syntax hints: wa 102 wb 103 wceq 1284 wex 1421 wcel 1433 cvv 2601 class class class wbr 3785 cdm 4363 crn 4364 wfn 4917 wfo 4920 wf1o 4921 cen 6242 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 104 ax-ia2 105 ax-ia3 106 ax-io 662 ax-5 1376 ax-7 1377 ax-gen 1378 ax-ie1 1422 ax-ie2 1423 ax-8 1435 ax-10 1436 ax-11 1437 ax-i12 1438 ax-bndl 1439 ax-4 1440 ax-13 1444 ax-14 1445 ax-17 1459 ax-i9 1463 ax-ial 1467 ax-i5r 1468 ax-ext 2063 ax-sep 3896 ax-pow 3948 ax-pr 3964 ax-un 4188 |
This theorem depends on definitions: df-bi 115 df-3an 921 df-tru 1287 df-nf 1390 df-sb 1686 df-eu 1944 df-mo 1945 df-clab 2068 df-cleq 2074 df-clel 2077 df-nfc 2208 df-ral 2353 df-rex 2354 df-v 2603 df-un 2977 df-in 2979 df-ss 2986 df-pw 3384 df-sn 3404 df-pr 3405 df-op 3407 df-uni 3602 df-br 3786 df-opab 3840 df-xp 4369 df-rel 4370 df-cnv 4371 df-dm 4373 df-rn 4374 df-fn 4925 df-f 4926 df-f1 4927 df-fo 4928 df-f1o 4929 df-en 6245 |
This theorem is referenced by: domen 6255 f1oen3g 6257 ener 6282 en0 6298 ensn1 6299 en1 6302 unen 6316 enm 6317 phplem4 6341 phplem4on 6353 fidceq 6354 dif1en 6364 fin0 6369 fin0or 6370 en2eqpr 6380 |
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