let P be Instruction-Sequence of SCMPDS; for s being State of SCMPDS
for I, J being Program of holds
( I is_closed_on s,P iff I is_closed_on Initialize s,P +* J )
let s be State of SCMPDS; for I, J being Program of holds
( I is_closed_on s,P iff I is_closed_on Initialize s,P +* J )
let I, J be Program of ; ( I is_closed_on s,P iff I is_closed_on Initialize s,P +* J )
DataPart s = DataPart (Initialize s)
by MEMSTR_0:45;
hence
( I is_closed_on s,P iff I is_closed_on Initialize s,P +* J )
by Th13; verum