Metamath Proof Explorer

Theorem 3t1e3

Description: 3 times 1 equals 3. (Contributed by David A. Wheeler, 8-Dec-2018)

Ref Expression
Assertion 3t1e3 
|- ( 3 x. 1 ) = 3

Proof

Step Hyp Ref Expression
1 3cn 
 |-  3 e. CC
2 1 mulid1i 
 |-  ( 3 x. 1 ) = 3