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Mirrors > Home > MPE Home > Th. List > f1eq1 | Structured version Visualization version Unicode version |
Description: Equality theorem for one-to-one functions. (Contributed by NM, 10-Feb-1997.) |
Ref | Expression |
---|---|
f1eq1 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | feq1 6026 | . . 3 | |
2 | cnveq 5296 | . . . 4 | |
3 | 2 | funeqd 5910 | . . 3 |
4 | 1, 3 | anbi12d 747 | . 2 |
5 | df-f1 5893 | . 2 | |
6 | df-f1 5893 | . 2 | |
7 | 4, 5, 6 | 3bitr4g 303 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wi 4 wb 196 wa 384 wceq 1483 ccnv 5113 wfun 5882 wf 5884 wf1 5885 |
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-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 |
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-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 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-sn 4178 df-pr 4180 df-op 4184 df-br 4654 df-opab 4713 df-rel 5121 df-cnv 5122 df-co 5123 df-dm 5124 df-rn 5125 df-fun 5890 df-fn 5891 df-f 5892 df-f1 5893 |
This theorem is referenced by: f1oeq1 6127 f1eq123d 6131 fo00 6172 f1prex 6539 fun11iun 7126 tposf12 7377 oacomf1olem 7644 f1dom2g 7973 f1domg 7975 dom3d 7997 domtr 8009 domssex2 8120 1sdom 8163 marypha1lem 8339 fseqenlem1 8847 dfac12lem2 8966 dfac12lem3 8967 ackbij2 9065 fin23lem28 9162 fin23lem32 9166 fin23lem34 9168 fin23lem35 9169 fin23lem41 9174 iundom2g 9362 pwfseqlem5 9485 hashf1lem1 13239 hashf1lem2 13240 hashf1 13241 4sqlem11 15659 conjsubgen 17693 sylow1lem2 18014 sylow2blem1 18035 hauspwpwf1 21791 istrkg2ld 25359 axlowdim 25841 sizusglecusg 26359 specval 28757 aciunf1lem 29462 zrhchr 30020 qqhre 30064 eldioph2lem2 37324 meadjiunlem 40682 |
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