Definition df-inl 7237

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 7235	. 2 class inl
2		vx	. . 3 setvar x
3		cvv 2800	. . 3 class _V
4		c0 3492	. . . 4 class (/)
5	2	cv 1394	. . . 4 class x
6	4, 5	cop 3670	. . 3 class <. (/) , x >.
7	2, 3, 6	cmpt 4148	. 2 class ( x e. _V |-> <. (/) , x >. )
8	1, 7	wceq 1395	1 wff inl = ( x e. _V |-> <. (/) , x >. )

This definition is referenced by:  djulclr  7239  djulcl  7241  djulclb  7245  djulf1or  7246  djulf1o  7248  inl11  7255  djuss  7260  1stinl  7264  2ndinl  7265  caseinj  7279  caseinl  7281  djudoml  7424  djulclALT  16333