Definition df-inl 7377

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 7375	. 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 3708	. . 3 class <. (/) , x >.
7	2, 3, 6	cmpt 4187	. 2 class ( x e. _V |-> <. (/) , x >. )
8	1, 7	wceq 1402	1 wff inl = ( x e. _V |-> <. (/) , x >. )

This definition is referenced by:  djulclr  7379  djulcl  7381  djulclb  7385  djulf1or  7386  djulf1o  7388  inl11  7395  djuss  7400  1stinl  7404  2ndinl  7405  caseinj  7419  caseinl  7421  djudoml  7565  djulclALT  16743