:: deftheorem Def5 defines -VectSp_over PRVECT_1:def 5 :
for F being Field
for n being Nat
for b3 being strict ModuleStr over F holds
( b3 = n -VectSp_over F iff ( addLoopStr(# the carrier of b3, the addF of b3, the ZeroF of b3 #) = n -Group_over F & the lmult of b3 = n -Mult_over F ) );