let N be non empty with_non-empty_elements set ; :: thesis: for S being non empty stored-program IC-Ins-separated definite realistic COM-Struct of N
for p, q being PartState of S
for k being Nat st IC in dom q holds
DecIC ((p +* q),k) = p +* (DecIC (q,k))
let S be non empty stored-program IC-Ins-separated definite realistic COM-Struct of N; :: thesis: for p, q being PartState of S
for k being Nat st IC in dom q holds
DecIC ((p +* q),k) = p +* (DecIC (q,k))
let p, q be PartState of S; :: thesis: for k being Nat st IC in dom q holds
DecIC ((p +* q),k) = p +* (DecIC (q,k))
let k be Nat; :: thesis: ( IC in dom q implies DecIC ((p +* q),k) = p +* (DecIC (q,k)) )
assume IC in dom q ; :: thesis: DecIC ((p +* q),k) = p +* (DecIC (q,k))
then IC (p +* q) = IC q by FUNCT_4:14;
hence DecIC ((p +* q),k) = p +* (DecIC (q,k)) by FUNCT_4:15; :: thesis: verum