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Theorem cnvresrn 39025
Description: Converse restricted to range is converse. (Contributed by Peter Mazsa, 3-Sep-2021.)
Assertion
Ref Expression
cnvresrn (𝑅 ↾ ran 𝑅) = 𝑅

Proof of Theorem cnvresrn
StepHypRef Expression
1 df-rn 5671 . . 3 ran 𝑅 = dom 𝑅
21reseq2i 5974 . 2 (𝑅 ↾ ran 𝑅) = (𝑅 ↾ dom 𝑅)
3 relcnv 6105 . . 3 Rel 𝑅
4 dfrel5 39023 . . 3 (Rel 𝑅 ↔ (𝑅 ↾ dom 𝑅) = 𝑅)
53, 4mpbi 233 . 2 (𝑅 ↾ dom 𝑅) = 𝑅
62, 5eqtri 2785 1 (𝑅 ↾ ran 𝑅) = 𝑅
Colors of variables:    wff setvar class
This proof depends on syntax axioms:   = wceq 1569  ccnv 5659  dom cdm 5660  ran crn 5661  cres 5662  Rel wrel 5665
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1824  ax-4 1838  ax-5 1939  ax-6 1996  ax-7 2037  ax-8 2144  ax-9 2152  ax-ext 2734  ax-sep 5256  ax-pr 5403
This proof depends on definitions:  df-bi 210  df-an 401  df-or 861  df-3an 1104  df-tru 1572  df-fal 1582  df-ex 1809  df-sb 2096  df-clab 2741  df-cleq 2754  df-clel 2837  df-ral 3079  df-rex 3089  df-rab 3416  df-v 3456  df-dif 3907  df-un 3909  df-in 3911  df-ss 3921  df-nul 4286  df-if 4487  df-sn 4589  df-pr 4591  df-op 4595  df-br 5109  df-opab 5173  df-xp 5666  df-rel 5667  df-cnv 5668  df-dm 5670  df-rn 5671  df-res 5672
This theorem is used by:  alrmomorn  39035
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