Let a, b and c be given.
Assume H.
Let p be given.
Assume Hp.
Apply int_lin_comb_E a b c H to the current goal.
Assume _ _ _.
Let m be given.
Assume Hm.
Let n be given.
Assume Hn H1.
An exact proof term for the current goal is Hp m Hm n Hn H1.