:: deftheorem defines para-closed AMI_WSTD:def 9 :
for N being with_zero set
for S being non empty with_non-empty_values IC-Ins-separated weakly_standard AMI-Struct over N
for F being NAT -defined the InstructionsF of b₂ -valued Function holds
( F is para-closed iff for s being State of S st IC s = il. (S,0) holds
for k being Element of NAT holds IC (Comput (F,s,k)) in dom F );