Definition df-inl 7210

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 7208	. 2 class inl
2		vx	. . 3 setvar x
3		cvv 2799	. . 3 class _V
4		c0 3491	. . . 4 class (/)
5	2	cv 1394	. . . 4 class x
6	4, 5	cop 3669	. . 3 class <. (/) , x >.
7	2, 3, 6	cmpt 4144	. 2 class ( x e. _V |-> <. (/) , x >. )
8	1, 7	wceq 1395	1 wff inl = ( x e. _V |-> <. (/) , x >. )

This definition is referenced by:  djulclr  7212  djulcl  7214  djulclb  7218  djulf1or  7219  djulf1o  7221  inl11  7228  djuss  7233  1stinl  7237  2ndinl  7238  caseinj  7252  caseinl  7254  djudoml  7397  djulclALT  16123