MPE Home Metamath Proof Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  MPE Home  >  Th. List  >  f1ococnv2 Structured version   Visualization version   GIF version

Theorem f1ococnv2 6850
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 6830 . 2 (𝐹:𝐴1-1-onto𝐵𝐹:𝐴onto𝐵)
2 fococnv2 6849 . 2 (𝐹:𝐴onto𝐵 → (𝐹𝐹) = ( I ↾ 𝐵))
31, 2syl 18 1 (𝐹:𝐴1-1-onto𝐵 → (𝐹𝐹) = ( I ↾ 𝐵))
Colors of variables: wff setvar class
Syntax hints:  wi 4   = wceq 1570   I cid 5557  ccnv 5662  cres 5665  ccom 5667  ontowfo 6536  1-1-ontowf1o 6537
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1825  ax-4 1839  ax-5 1940  ax-6 1997  ax-7 2038  ax-8 2145  ax-9 2153  ax-ext 2735  ax-sep 5258  ax-pr 5406
This theorem depends on definitions:  df-bi 210  df-an 401  df-or 861  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1810  df-sb 2097  df-clab 2742  df-cleq 2755  df-clel 2838  df-ral 3080  df-rex 3090  df-rab 3417  df-v 3457  df-dif 3909  df-un 3911  df-in 3913  df-ss 3923  df-nul 4288  df-if 4489  df-sn 4591  df-pr 4593  df-op 4597  df-br 5111  df-opab 5175  df-id 5558  df-xp 5669  df-rel 5670  df-cnv 5671  df-co 5672  df-dm 5673  df-rn 5674  df-res 5675  df-fun 6540  df-fn 6541  df-f 6542  df-f1 6543  df-fo 6544  df-f1o 6545
This theorem is referenced by:  f1ococnv1  6852  f1ocnvfv2  7277  mapen  9130  hashfacen  14493  setcinv  18148  catcisolem  18168  symginv  19473  f1omvdco2  19519  gsumval3  19978  gsumzf1o  19983  rngcinv  20723  ringcinv  20757  psrass1lem  22064  evl1var  22477  pf1ind  22496  fcobij  33046  cocnvf1o  33055  symgfcoeu  33383  cycpmconjvlem  33442  cycpmconjs  33457  cyc3conja  33458  mplvrpmrhm  33918  erdsze2lem2  35677  ltrncoidN  40883  cdlemg46  41490  cdlemk45  41702  cdlemk55a  41714  tendocnv  41776  eldioph2  43476  rngcinvALTV  49024  ringcinvALTV  49058
  Copyright terms: Public domain W3C validator