Let p be given.
Let a be given.
An exact proof term for the current goal is (HA_sub a Ha).
rewrite the current goal using Heqp (from left to right).
rewrite the current goal using Hra (from left to right).
rewrite the current goal using Hca (from left to right).
Let p be given.
rewrite the current goal using Hdef (from right to left).
An exact proof term for the current goal is Hp.
Let a be given.
An exact proof term for the current goal is (HA_sub a Ha).
rewrite the current goal using Heqp (from left to right).
rewrite the current goal using Hra (from right to left).
rewrite the current goal using Hca (from right to left).