%%%%%%%%%%%%%%%%%%%%%  Basic options

op(400, xfx, [*,+,^,v,/,\,#]).  % infix operators
op(300,yf,@).                   % postfix operator

clear(print_kept).
clear(print_new_demod).
clear(print_back_demod).

assign(pick_given_ratio, 4).
assign(max_mem, 20000).

%%%%%%%%%%%%%%%%%%%%%  Standard for equational problems

set(knuth_bendix).
set(build_proof_object).

%%%%%%%%%%%%%%%%%%%%%  Standard options for hyperresolution

set(output_sequent).
set(hyper_res).
set(order_history).
set(unit_deletion).
set(para_from_units_only).
set(para_into_units_only).

%%%%%%%%%%%%%%%%%%%%%  Modifications to strategy

% assign(max_weight, 28).

%%%%%%%%%%%%%%%%%%%%%  Clauses

list(usable).
x = x.
end_of_list.

list(sos).
x* ((((x* y@)* y)@ * z)* ((alpha * u)@ * (beta * u)))=z.  % 2158
x@ * x = y@ * y.
x@ * (x * y) = y.
(x * y) * y@ = x.
end_of_list.

list(passive).
beta != alpha.
end_of_list.