Like the function RESQ_IMP_RES_THEN, the function RESQ_RES_THEN
performs a single step resolution. The difference is that the
restricted universal quantification used in the resolution is taken
from the assumptions.
Given a theorem-tactic ttac, applying the tactic
RESQ_RES_THEN ttac to a goal (asml,gl) has the effect of:
MAP_EVERY (mapfilter ttac [... ; (ai,aj |- vi) ; ...]) (amsl ?- g)
where the theorems ai,aj |- vi are all the consequences that can be
drawn by a (single) matching modus-ponens inference from the
assumptions amsl and the implications derived from the restricted
universal quantifications in the assumptions.