Metamath Proof Explorer

Theorem 2ne0

Description: The number 2 is nonzero. (Contributed by NM, 9-Nov-2007)

Ref Expression
Assertion 2ne0 
|- 2 =/= 0

Proof

Step Hyp Ref Expression
1 2re 
 |-  2 e. RR
2 2pos 
 |-  0 < 2
3 1 2 gt0ne0ii 
 |-  2 =/= 0