Definition df-inl 7246

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 7244	. 2 class inl
2		vx	. . 3 setvar x
3		cvv 2802	. . 3 class _V
4		c0 3494	. . . 4 class (/)
5	2	cv 1396	. . . 4 class x
6	4, 5	cop 3672	. . 3 class <. (/) , x >.
7	2, 3, 6	cmpt 4150	. 2 class ( x e. _V |-> <. (/) , x >. )
8	1, 7	wceq 1397	1 wff inl = ( x e. _V |-> <. (/) , x >. )

This definition is referenced by:  djulclr  7248  djulcl  7250  djulclb  7254  djulf1or  7255  djulf1o  7257  inl11  7264  djuss  7269  1stinl  7273  2ndinl  7274  caseinj  7288  caseinl  7290  djudoml  7434  djulclALT  16448