Theorem sq8

Description: The square of 8 is 64. (Contributed by SN, 26-Aug-2025)

	Ref	Expression
Assertion	sq8	$$⊢8^2=64$$

Proof

Step	Hyp	Ref	Expression
1		8cn	$$⊢8\in ℂ$$
2	1	sqvali	$$⊢8^2=8\cdot 8$$
3		8t8e64	$$⊢8\cdot 8=64$$
4	2 3	eqtri	$$⊢8^2=64$$