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Metamath Proof Explorer

Definition df-funss

Description: Define the class of all function sets (but not necessarily function relations, cf. df-funsALTV ). It is used only by df-funsALTV . (Contributed by Peter Mazsa, 17-Jul-2021)

		Ref	Expression
	Assertion	df-funss	$⊢ Funss = \{x \| ≀ x \in CnvRefRels\}$

Detailed syntax breakdown

Step	Hyp	Ref	Expression
0		cfunss	$class Funss$
1		vx	$setvar x$
2	1	cv	$setvar x$
3	2	ccoss	$class ≀ x$
4		ccnvrefrels	$class CnvRefRels$
5	3 4	wcel	$wff ≀ x \in CnvRefRels$
6	5 1	cab	$class \{x \| ≀ x \in CnvRefRels\}$
7	0 6	wceq	$wff Funss = \{x \| ≀ x \in CnvRefRels\}$