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Mirrors > Home > MPE Home > Th. List > f1ococnv1 | Structured version Visualization version Unicode version |
Description: The composition of a one-to-one onto function's converse and itself equals the identity relation restricted to the function's domain. (Contributed by NM, 13-Dec-2003.) |
Ref | Expression |
---|---|
f1ococnv1 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | f1orel 6140 | . . . 4 | |
2 | dfrel2 5583 | . . . 4 | |
3 | 1, 2 | sylib 208 | . . 3 |
4 | 3 | coeq2d 5284 | . 2 |
5 | f1ocnv 6149 | . . 3 | |
6 | f1ococnv2 6163 | . . 3 | |
7 | 5, 6 | syl 17 | . 2 |
8 | 4, 7 | eqtr3d 2658 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wi 4 wceq 1483 cid 5023 ccnv 5113 cres 5116 ccom 5118 wrel 5119 wf1o 5887 |
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 ax-sep 4781 ax-nul 4789 ax-pr 4906 |
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-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-sn 4178 df-pr 4180 df-op 4184 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-fun 5890 df-fn 5891 df-f 5892 df-f1 5893 df-fo 5894 df-f1o 5895 |
This theorem is referenced by: f1cocnv1 6166 f1ocnvfv1 6532 fcof1oinvd 6548 mapen 8124 mapfien 8313 hashfacen 13238 setcinv 16740 catcisolem 16756 symggrp 17820 f1omvdco2 17868 pf1mpf 19716 ufldom 21766 motgrp 25438 fmptco1f1o 29434 fcobij 29500 symgfcoeu 29845 reprpmtf1o 30704 subfacp1lem5 31166 ltrncoidN 35414 trlcoabs2N 36010 trlcoat 36011 trlcone 36016 cdlemg47 36024 tgrpgrplem 36037 tendoipl 36085 cdlemi2 36107 cdlemk2 36120 cdlemk4 36122 cdlemk8 36126 tendocnv 36310 dvhgrp 36396 cdlemn8 36493 dihopelvalcpre 36537 dssmap2d 38316 rngcinv 41981 rngcinvALTV 41993 ringcinv 42032 ringcinvALTV 42056 |
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