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Metamath Proof Explorer

Theorem 2t1e2

Description: 2 times 1 equals 2. (Contributed by David A. Wheeler, 6-Dec-2018)

Ref Expression
Assertion 2t1e2 ( 2 · 1 ) = 2

Proof

Step Hyp Ref Expression
1 2cn ⊢ 2 ∈ ℂ
2 1 mulridi ⊢ ( 2 · 1 ) = 2