Theorem 3ex

Description: The number 3 is a set. (Contributed by David A. Wheeler, 8-Dec-2018)

	Ref	Expression
Assertion	3ex	⊢ 3 ∈ V

Proof

Step	Hyp	Ref	Expression
1		3cn	⊢ 3 ∈ ℂ
2	1	elexi	⊢ 3 ∈ V