let a, b be Int-Location ; :: thesis: SubFrom a,b = [3,<*a,b*>]
ex A, B being Data-Location st
( a = A & b = B & SubFrom a,b = SubFrom A,B ) by SCMFSA_2:def 13;
hence SubFrom a,b = [3,<*a,b*>] ; :: thesis: verum