Theorem 1aa

Description: One is algebraic. (Contributed by Ender Ting, 21-Jul-2026)

	Ref	Expression
Assertion	1aa	|- 1 e. AA

Proof

Step	Hyp	Ref	Expression
1		qssaa	|- QQ C_ AA
2		zssq	|- ZZ C_ QQ
3		1z	|- 1 e. ZZ
4	2 3	sselii	|- 1 e. QQ
5	1 4	sselii	|- 1 e. AA