Definition df-inl 7175

Description: Left injection of a disjoint union. (Contributed by Mario Carneiro, 21-Jun-2022.)

Assertion

Ref	Expression
df-inl	|- inl = ( x e. _V |-> <. (/) , x >. )

Detailed syntax breakdown of Definition df-inl

Step	Hyp	Ref	Expression
1		cinl 7173	. 2 class inl
2		vx	. . 3 setvar x
3		cvv 2776	. . 3 class _V
4		c0 3468	. . . 4 class (/)
5	2	cv 1372	. . . 4 class x
6	4, 5	cop 3646	. . 3 class <. (/) , x >.
7	2, 3, 6	cmpt 4121	. 2 class ( x e. _V |-> <. (/) , x >. )
8	1, 7	wceq 1373	1 wff inl = ( x e. _V |-> <. (/) , x >. )

This definition is referenced by:  djulclr  7177  djulcl  7179  djulclb  7183  djulf1or  7184  djulf1o  7186  inl11  7193  djuss  7198  1stinl  7202  2ndinl  7203  caseinj  7217  caseinl  7219  djudoml  7362  djulclALT  15937