Definition df-rn 4787

Description: Define the range of a class. The notation "ran " is used by Enderton; other authors sometimes use script R or script W. (Contributed by SF, 5-Jan-2015.)

Assertion

Ref	Expression
df-rn	⊢ ran A = (A “ V)

Detailed syntax breakdown of Definition df-rn

Step	Hyp	Ref	Expression
1		cA	. . 3 class A
2	1	crn 4774	. 2 class ran A
3		cvv 2860	. . 3 class V
4	1, 3	cima 4723	. 2 class (A “ V)
5	2, 4	wceq 1642	1 wff ran A = (A “ V)

This definition is referenced by:  elrn  4897  rneq  4957  nfrn  4964  rnexg  5105