take c ; :: thesis: ex c being Element of SCM+FSA-Data-Loc ex f being Element of SCM+FSA-Data*-Loc ex b being Element of SCM+FSA-Data-Loc st
( <*c,f,b*> = x `2 & c = c )

take c ; :: thesis: ex f being Element of SCM+FSA-Data*-Loc ex b being Element of SCM+FSA-Data-Loc st
( <*c,f,b*> = x `2 & c = c )

take f ; :: thesis: ex b being Element of SCM+FSA-Data-Loc st
( <*c,f,b*> = x `2 & c = c )

take b ; :: thesis: ( <*c,f,b*> = x `2 & c = c )
thus ( <*c,f,b*> = x `2 & c = c ) by A1, MCART_1:7; :: thesis: verum