Metamath Proof Explorer


Definition df-mulr

Description: Define ring multiplication. (Contributed by NM, 4-Sep-2011) (Revised by Mario Carneiro, 14-Aug-2015)

Ref Expression
Assertion df-mulr 𝑟 = Slot 3

Detailed syntax breakdown

Step Hyp Ref Expression
0 cmulr class 𝑟
1 c3 class 3
2 1 cslot class Slot 3
3 0 2 wceq wff 𝑟 = Slot 3