Definition df-inl 7164

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 7162	. 2 class inl
2		vx	. . 3 setvar x
3		cvv 2773	. . 3 class _V
4		c0 3464	. . . 4 class (/)
5	2	cv 1372	. . . 4 class x
6	4, 5	cop 3641	. . 3 class <. (/) , x >.
7	2, 3, 6	cmpt 4113	. 2 class ( x e. _V |-> <. (/) , x >. )
8	1, 7	wceq 1373	1 wff inl = ( x e. _V |-> <. (/) , x >. )

This definition is referenced by:  djulclr  7166  djulcl  7168  djulclb  7172  djulf1or  7173  djulf1o  7175  inl11  7182  djuss  7187  1stinl  7191  2ndinl  7192  caseinj  7206  caseinl  7208  djudoml  7347  djulclALT  15876