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Theorem nfofr 6903
Description: Hypothesis builder for function relation. (Contributed by Mario Carneiro, 28-Jul-2014.)
Hypothesis
Ref Expression
nfof.1  |-  F/_ x R
Assertion
Ref Expression
nfofr  |-  F/_ x  oR R
Distinct variable group:    x, R

Proof of Theorem nfofr
StepHypRef Expression
1 nfcv 2764 1  |-  F/_ x  oR R
Colors of variables: wff setvar class
Syntax hints:   F/_wnfc 2751    oRcofr 6896
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1722  ax-5 1839
This theorem depends on definitions:  df-bi 197  df-ex 1705  df-nf 1710  df-nfc 2753
This theorem is referenced by: (None)
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