Definition df-inl 7393

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 7391	. 2 class inl
2		vx	. . 3 setvar x
3		cvv 2821	. . 3 class _V
4		c0 3520	. . . 4 class (/)
5	2	cv 1401	. . . 4 class x
6	4, 5	cop 3712	. . 3 class <. (/) , x >.
7	2, 3, 6	cmpt 4193	. 2 class ( x e. _V |-> <. (/) , x >. )
8	1, 7	wceq 1402	1 wff inl = ( x e. _V |-> <. (/) , x >. )

This definition is used by:  djulclr  7395  djulcl  7397  djulclb  7401  djulf1or  7402  djulf1o  7404  inl11  7411  djuss  7416  1stinl  7420  2ndinl  7421  caseinj  7435  caseinl  7437  djudoml  7581  djulclALT  17034