Metamath Proof Explorer


Theorem 1eltp012

Description: 1 is an element of { 0 , 1 , 2 } . (Contributed by Umit Teoman Dogan, 10-Jun-2026)

Ref Expression
Assertion 1eltp012 1 0 1 2

Proof

Step Hyp Ref Expression
1 1ex 1 V
2 1 tpid2 1 0 1 2