Definition df-inl 6940

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 6938	. 2 class inl
2		vx	. . 3 setvar x
3		cvv 2689	. . 3 class _V
4		c0 3368	. . . 4 class (/)
5	2	cv 1331	. . . 4 class x
6	4, 5	cop 3535	. . 3 class <. (/) , x >.
7	2, 3, 6	cmpt 3997	. 2 class ( x e. _V |-> <. (/) , x >. )
8	1, 7	wceq 1332	1 wff inl = ( x e. _V |-> <. (/) , x >. )

This definition is referenced by:  djulclr  6942  djulcl  6944  djulclb  6948  djulf1or  6949  djulf1o  6951  inl11  6958  djuss  6963  1stinl  6967  2ndinl  6968  caseinj  6982  caseinl  6984  djudoml  7092  djulclALT  13179