Theorem 3ex

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

	Ref	Expression
Assertion	3ex	$$⊢3\in \mathrm{V}$$

Proof

Step	Hyp	Ref	Expression
1		3cn	$$⊢3\in ℂ$$
2	1	elexi	$$⊢3\in \mathrm{V}$$