take ml ; :: thesis: ex f being FinSequence of SCM-Data-Loc st
( f = x `2 & ml = f /. 2 )

take <*mk,ml*> ; :: thesis: ( <*mk,ml*> = x `2 & ml = <*mk,ml*> /. 2 )
thus ( <*mk,ml*> = x `2 & ml = <*mk,ml*> /. 2 ) by A1, FINSEQ_4:26, MCART_1:7; :: thesis: verum