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Theorem f1ococnv2 6807
Description: The composition of a one-to-one onto function and its converse equals the identity relation restricted to the function's range. (Contributed by NM, 13-Dec-2003.) (Proof shortened by Stefan O'Rear, 12-Feb-2015.)
Assertion
Ref Expression
f1ococnv2 (𝐹:𝐴1-1-onto𝐵 → (𝐹𝐹) = ( I ↾ 𝐵))

Proof of Theorem f1ococnv2
StepHypRef Expression
1 f1ofo 6787 . 2 (𝐹:𝐴1-1-onto𝐵𝐹:𝐴onto𝐵)
2 fococnv2 6806 . 2 (𝐹:𝐴onto𝐵 → (𝐹𝐹) = ( I ↾ 𝐵))
31, 2syl 17 1 (𝐹:𝐴1-1-onto𝐵 → (𝐹𝐹) = ( I ↾ 𝐵))
Colors of variables: wff setvar class
Syntax hints:  wi 4   = wceq 1542   I cid 5525  ccnv 5630  cres 5633  ccom 5635  ontowfo 6496  1-1-ontowf1o 6497
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1797  ax-4 1811  ax-5 1912  ax-6 1969  ax-7 2010  ax-8 2116  ax-9 2124  ax-ext 2708  ax-sep 5231  ax-pr 5375
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 849  df-3an 1089  df-tru 1545  df-fal 1555  df-ex 1782  df-sb 2069  df-clab 2715  df-cleq 2728  df-clel 2811  df-ral 3052  df-rex 3062  df-rab 3390  df-v 3431  df-dif 3892  df-un 3894  df-in 3896  df-ss 3906  df-nul 4274  df-if 4467  df-sn 4568  df-pr 4570  df-op 4574  df-br 5086  df-opab 5148  df-id 5526  df-xp 5637  df-rel 5638  df-cnv 5639  df-co 5640  df-dm 5641  df-rn 5642  df-res 5643  df-fun 6500  df-fn 6501  df-f 6502  df-f1 6503  df-fo 6504  df-f1o 6505
This theorem is referenced by:  f1ococnv1  6809  f1ocnvfv2  7232  mapen  9079  hashfacen  14416  setcinv  18057  catcisolem  18077  symginv  19377  f1omvdco2  19423  gsumval3  19882  gsumzf1o  19887  rngcinv  20614  ringcinv  20648  psrass1lem  21912  evl1var  22301  pf1ind  22320  fcobij  32793  cocnvf1o  32802  symgfcoeu  33143  cycpmconjvlem  33202  cycpmconjs  33217  cyc3conja  33218  mplvrpmrhm  33691  erdsze2lem2  35386  ltrncoidN  40574  cdlemg46  41181  cdlemk45  41393  cdlemk55a  41405  tendocnv  41467  eldioph2  43194  rngcinvALTV  48752  ringcinvALTV  48786
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