Definition df-mty

Description: Define the type function in a Metamath formal system. (Contributed by Mario Carneiro, 14-Jul-2016)

	Ref	Expression
Assertion	df-mty	$$⊢\mathrm{mType}=\mathrm{Slot}3$$

Detailed syntax breakdown

Step	Hyp	Ref	Expression
0		cmty	$$class\mathrm{mType}$$
1		c3	$$class3$$
2	1	cslot	$$class\mathrm{Slot}3$$
3	0 2	wceq	$$wff\mathrm{mType}=\mathrm{Slot}3$$