Definition df-inl 7108

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 7106	. 2 class inl
2		vx	. . 3 setvar x
3		cvv 2760	. . 3 class _V
4		c0 3447	. . . 4 class (/)
5	2	cv 1363	. . . 4 class x
6	4, 5	cop 3622	. . 3 class <. (/) , x >.
7	2, 3, 6	cmpt 4091	. 2 class ( x e. _V |-> <. (/) , x >. )
8	1, 7	wceq 1364	1 wff inl = ( x e. _V |-> <. (/) , x >. )

This definition is referenced by:  djulclr  7110  djulcl  7112  djulclb  7116  djulf1or  7117  djulf1o  7119  inl11  7126  djuss  7131  1stinl  7135  2ndinl  7136  caseinj  7150  caseinl  7152  djudoml  7281  djulclALT  15363