Metamath Proof Explorer


Theorem 2ne3

Description: 2 is not equal to 3 . (Contributed by Jiamin Zhao, 1-Aug-2026)

Ref Expression
Assertion 2ne3
|- 2 =/= 3

Proof

Step Hyp Ref Expression
1 2re
 |-  2 e. RR
2 2lt3
 |-  2 < 3
3 1 2 ltneii
 |-  2 =/= 3