Metamath Proof Explorer


Theorem 6pos

Description: The number 6 is positive. (Contributed by NM, 27-May-1999) (Proof shortened by Umit Teoman Dogan, 10-Jun-2026)

Ref Expression
Assertion 6pos
|- 0 < 6

Proof

Step Hyp Ref Expression
1 6nn
 |-  6 e. NN
2 1 nngt0i
 |-  0 < 6