Section IDomainPseudoDivision.
Variable R : idomainType.
Implicit Type p q r d m n : {poly R}.
Hint Resolve divp0 divp1 mod0p modp0 modp1 : core.

Lemma size_divp p q : q != 0 -> size (p %/ q) = (size p - (size q).-1)%N.