%   ORIGINAL: h4/real/SUM__DIFF
% Assm: HL_TRUTH: T
% Assm: HL_FALSITY: ~F
% Assm: HL_BOOL_CASES: !t. (t <=> T) \/ (t <=> F)
% Assm: HL_EXT: !f g. (!x. f x = g x) ==> f = g
% Assm: h4/real/REAL__ADD__SYM: !y x. h4/realax/real__add x y = h4/realax/real__add y x
% Assm: h4/real/REAL__EQ__SUB__LADD: !z y x. x = h4/real/real__sub y z <=> h4/realax/real__add x z = y
% Assm: h4/real/SUM__TWO: !p n f. h4/realax/real__add (h4/real/sum (h4/pair/_2C h4/num/0 n) f) (h4/real/sum (h4/pair/_2C n p) f) = h4/real/sum (h4/pair/_2C h4/num/0 (h4/arithmetic/_2B n p)) f
% Goal: !n m f. h4/real/sum (h4/pair/_2C m n) f = h4/real/real__sub (h4/real/sum (h4/pair/_2C h4/num/0 (h4/arithmetic/_2B m n)) f) (h4/real/sum (h4/pair/_2C h4/num/0 m) f)
%   PROCESSED
% Assm [HLu_TRUTH]: T
% Assm [HLu_FALSITY]: ~F
% Assm [HLu_BOOLu_CASES]: !t. (t <=> T) \/ (t <=> F)
% Assm [HLu_EXT]: !f g. (!x. happ f x = happ g x) ==> f = g
% Assm [h4s_reals_REALu_u_ADDu_u_SYM]: !y x. h4/realax/real__add x y = h4/realax/real__add y x
% Assm [h4s_reals_REALu_u_EQu_u_SUBu_u_LADD]: !z y x. x = h4/real/real__sub y z <=> h4/realax/real__add x z = y
% Assm [h4s_reals_SUMu_u_TWO]: !p n f. h4/realax/real__add (h4/real/sum (h4/pair/_2C h4/num/0 n) f) (h4/real/sum (h4/pair/_2C n p) f) = h4/real/sum (h4/pair/_2C h4/num/0 (h4/arithmetic/_2B n p)) f
% Goal: !n m f. h4/real/sum (h4/pair/_2C m n) f = h4/real/real__sub (h4/real/sum (h4/pair/_2C h4/num/0 (h4/arithmetic/_2B m n)) f) (h4/real/sum (h4/pair/_2C h4/num/0 m) f)
fof(aHLu_TRUTH, axiom, p(s(t_bool,t))).
fof(aHLu_FALSITY, axiom, ~ (p(s(t_bool,f0)))).
fof(aHLu_BOOLu_CASES, axiom, ![V_t]: (s(t_bool,V_t) = s(t_bool,t) | s(t_bool,V_t) = s(t_bool,f0))).
fof(aHLu_EXT, axiom, ![TV_Q66876,TV_Q66872]: ![V_f, V_g]: (![V_x]: s(TV_Q66872,happ(s(t_fun(TV_Q66876,TV_Q66872),V_f),s(TV_Q66876,V_x))) = s(TV_Q66872,happ(s(t_fun(TV_Q66876,TV_Q66872),V_g),s(TV_Q66876,V_x))) => s(t_fun(TV_Q66876,TV_Q66872),V_f) = s(t_fun(TV_Q66876,TV_Q66872),V_g))).
fof(ah4s_reals_REALu_u_ADDu_u_SYM, axiom, ![V_y, V_x]: s(t_h4s_realaxs_real,h4s_realaxs_realu_u_add(s(t_h4s_realaxs_real,V_x),s(t_h4s_realaxs_real,V_y))) = s(t_h4s_realaxs_real,h4s_realaxs_realu_u_add(s(t_h4s_realaxs_real,V_y),s(t_h4s_realaxs_real,V_x)))).
fof(ah4s_reals_REALu_u_EQu_u_SUBu_u_LADD, axiom, ![V_z, V_y, V_x]: (s(t_h4s_realaxs_real,V_x) = s(t_h4s_realaxs_real,h4s_reals_realu_u_sub(s(t_h4s_realaxs_real,V_y),s(t_h4s_realaxs_real,V_z))) <=> s(t_h4s_realaxs_real,h4s_realaxs_realu_u_add(s(t_h4s_realaxs_real,V_x),s(t_h4s_realaxs_real,V_z))) = s(t_h4s_realaxs_real,V_y))).
fof(ah4s_reals_SUMu_u_TWO, axiom, ![V_p, V_n, V_f]: s(t_h4s_realaxs_real,h4s_realaxs_realu_u_add(s(t_h4s_realaxs_real,h4s_reals_sum(s(t_h4s_pairs_prod(t_h4s_nums_num,t_h4s_nums_num),h4s_pairs_u_2c(s(t_h4s_nums_num,h4s_nums_0),s(t_h4s_nums_num,V_n))),s(t_fun(t_h4s_nums_num,t_h4s_realaxs_real),V_f))),s(t_h4s_realaxs_real,h4s_reals_sum(s(t_h4s_pairs_prod(t_h4s_nums_num,t_h4s_nums_num),h4s_pairs_u_2c(s(t_h4s_nums_num,V_n),s(t_h4s_nums_num,V_p))),s(t_fun(t_h4s_nums_num,t_h4s_realaxs_real),V_f))))) = s(t_h4s_realaxs_real,h4s_reals_sum(s(t_h4s_pairs_prod(t_h4s_nums_num,t_h4s_nums_num),h4s_pairs_u_2c(s(t_h4s_nums_num,h4s_nums_0),s(t_h4s_nums_num,h4s_arithmetics_u_2b(s(t_h4s_nums_num,V_n),s(t_h4s_nums_num,V_p))))),s(t_fun(t_h4s_nums_num,t_h4s_realaxs_real),V_f)))).
fof(ch4s_reals_SUMu_u_DIFF, conjecture, ![V_n, V_m, V_f]: s(t_h4s_realaxs_real,h4s_reals_sum(s(t_h4s_pairs_prod(t_h4s_nums_num,t_h4s_nums_num),h4s_pairs_u_2c(s(t_h4s_nums_num,V_m),s(t_h4s_nums_num,V_n))),s(t_fun(t_h4s_nums_num,t_h4s_realaxs_real),V_f))) = s(t_h4s_realaxs_real,h4s_reals_realu_u_sub(s(t_h4s_realaxs_real,h4s_reals_sum(s(t_h4s_pairs_prod(t_h4s_nums_num,t_h4s_nums_num),h4s_pairs_u_2c(s(t_h4s_nums_num,h4s_nums_0),s(t_h4s_nums_num,h4s_arithmetics_u_2b(s(t_h4s_nums_num,V_m),s(t_h4s_nums_num,V_n))))),s(t_fun(t_h4s_nums_num,t_h4s_realaxs_real),V_f))),s(t_h4s_realaxs_real,h4s_reals_sum(s(t_h4s_pairs_prod(t_h4s_nums_num,t_h4s_nums_num),h4s_pairs_u_2c(s(t_h4s_nums_num,h4s_nums_0),s(t_h4s_nums_num,V_m))),s(t_fun(t_h4s_nums_num,t_h4s_realaxs_real),V_f)))))).
