Theorem nfofr 5738

Description: Hypothesis builder for function relation. (Contributed by Mario Carneiro, 28-Jul-2014.)

Hypothesis

Ref	Expression
nfof.1	⊢ Ⅎ𝑥𝑅

Assertion

Ref	Expression
nfofr	⊢ Ⅎ𝑥 ∘𝑟 𝑅

Distinct variable group:   𝑥,𝑅

Proof of Theorem nfofr

Step	Hyp	Ref	Expression
1		nfcv 2219	1 ⊢ Ⅎ𝑥 ∘𝑟 𝑅

Syntax hints:  Ⅎwnfc 2206   ∘_𝑟 cofr 5731

This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia1 104  ax-ia2 105  ax-ia3 106  ax-gen 1378  ax-17 1459

This theorem depends on definitions:  df-bi 115  df-nf 1390  df-nfc 2208

This theorem is referenced by: (None)