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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 }