Theorem uzsscn2

Description: An upper set of integers is a subset of the complex numbers. (Contributed by Glauco Siliprandi, 5-Feb-2022)

	Ref	Expression
Hypothesis	uzsscn2.1	|- Z = ( ZZ>= ` M )
Assertion	uzsscn2	|- Z C_ CC

Proof

Step	Hyp	Ref	Expression
1		uzsscn2.1	|- Z = ( ZZ>= ` M )
2		uzsscn	|- ( ZZ>= ` M ) C_ CC
3	1 2	eqsstri	|- Z C_ CC