Definition df-inl 7289

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 7287	. 2 class inl
2		vx	. . 3 setvar x
3		cvv 2803	. . 3 class _V
4		c0 3496	. . . 4 class (/)
5	2	cv 1397	. . . 4 class x
6	4, 5	cop 3676	. . 3 class <. (/) , x >.
7	2, 3, 6	cmpt 4155	. 2 class ( x e. _V |-> <. (/) , x >. )
8	1, 7	wceq 1398	1 wff inl = ( x e. _V |-> <. (/) , x >. )

This definition is referenced by:  djulclr  7291  djulcl  7293  djulclb  7297  djulf1or  7298  djulf1o  7300  inl11  7307  djuss  7312  1stinl  7316  2ndinl  7317  caseinj  7331  caseinl  7333  djudoml  7477  djulclALT  16502