Theorem freld

Description: A mapping is a relation. (Contributed by Glauco Siliprandi, 26-Jun-2021)

	Ref	Expression
Hypothesis	freld.1	$$⊢\phi \to F:A⟶B$$
Assertion	freld	$$⊢\phi \to \mathrm{Rel}F$$

Proof

Step	Hyp	Ref	Expression
1		freld.1	$$⊢\phi \to F:A⟶B$$
2		frel	$$⊢F:A⟶B\to \mathrm{Rel}F$$
3	1 2	syl	$$⊢\phi \to \mathrm{Rel}F$$