Theorem isanmbfmOLD

Description: Obsolete version of isanmbfm as of 13-Jan-2025. (Contributed by Thierry Arnoux, 30-Jan-2017) (Proof modification is discouraged.) (New usage is discouraged.)

	Ref	Expression
Hypotheses	mbfmf.1	|- ( ph -> S e. U. ran sigAlgebra )
	mbfmf.2	|- ( ph -> T e. U. ran sigAlgebra )
	mbfmf.3	|- ( ph -> F e. ( S MblFnM T ) )
Assertion	isanmbfmOLD	|- ( ph -> F e. U. ran MblFnM )

Proof

Step	Hyp	Ref	Expression
1		mbfmf.1	|- ( ph -> S e. U. ran sigAlgebra )
2		mbfmf.2	|- ( ph -> T e. U. ran sigAlgebra )
3		mbfmf.3	|- ( ph -> F e. ( S MblFnM T ) )
4		ovssunirn	|- ( S MblFnM T ) C_ U. ran MblFnM
5	4 3	sselid	|- ( ph -> F e. U. ran MblFnM )