%   ORIGINAL: h4/integral/INTEGRAL__COMBINE
% 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/bool/TRUTH: T
% Assm: h4/bool/EQ__SYM__EQ: !y x. x = y <=> y = x
% Assm: h4/bool/EQ__CLAUSES_c1: !t. (t <=> T) <=> t
% Assm: h4/bool/SELECT__ELIM__THM: !Q P. (?x. P x) /\ (!x. P x ==> Q x) ==> Q (h4/min/_40 P)
% Assm: h4/bool/AND__IMP__INTRO: !t3 t2 t1. t1 ==> t2 ==> t3 <=> t1 /\ t2 ==> t3
% Assm: h4/bool/IMP__CONG: !y_27 y x_27 x. (x <=> x_27) /\ (x_27 ==> (y <=> y_27)) ==> (x ==> y <=> x_27 ==> y_27)
% Assm: h4/real/REAL__LE__REFL: !x. h4/real/real__lte x x
% Assm: h4/real/REAL__LE__TRANS: !z y x. h4/real/real__lte x y /\ h4/real/real__lte y z ==> h4/real/real__lte x z
% Assm: h4/transc/DINT__UNIQ: !k2 k1 f b a. h4/real/real__lte a b /\ h4/transc/Dint (h4/pair/_2C a b) f k1 /\ h4/transc/Dint (h4/pair/_2C a b) f k2 ==> k1 = k2
% Assm: h4/integral/integrable__def: !f b a. h4/integral/integrable (h4/pair/_2C a b) f <=> (?i. h4/transc/Dint (h4/pair/_2C a b) f i)
% Assm: h4/integral/integral__def: !f b a. h4/integral/integral (h4/pair/_2C a b) f = h4/min/_40 (\i. h4/transc/Dint (h4/pair/_2C a b) f i)
% Assm: h4/integral/DINT__COMBINE: !j i f c b a. h4/real/real__lte a b /\ h4/real/real__lte b c /\ h4/transc/Dint (h4/pair/_2C a b) f i /\ h4/transc/Dint (h4/pair/_2C b c) f j ==> h4/transc/Dint (h4/pair/_2C a c) f (h4/realax/real__add i j)
% Assm: h4/integral/INTEGRABLE__SUBINTERVAL: !f d c b a. h4/real/real__lte a c /\ h4/real/real__lte c d /\ h4/real/real__lte d b /\ h4/integral/integrable (h4/pair/_2C a b) f ==> h4/integral/integrable (h4/pair/_2C c d) f
% Goal: !f c b a. h4/real/real__lte a b /\ h4/real/real__lte b c /\ h4/integral/integrable (h4/pair/_2C a c) f ==> h4/integral/integral (h4/pair/_2C a c) f = h4/realax/real__add (h4/integral/integral (h4/pair/_2C a b) f) (h4/integral/integral (h4/pair/_2C b c) 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_bools_TRUTH]: T
% Assm [h4s_bools_EQu_u_SYMu_u_EQ]: !y x. x = y <=> y = x
% Assm [h4s_bools_EQu_u_CLAUSESu_c1]: !t. (t <=> T) <=> t
% Assm [h4s_bools_SELECTu_u_ELIMu_u_THM]: !Q P. (?x. happ P x) /\ (!x. happ P x ==> happ Q x) ==> happ Q (h4/min/_40 P)
% Assm [h4s_bools_ANDu_u_IMPu_u_INTRO]: !t3 t2 t1. t1 ==> t2 ==> t3 <=> t1 /\ t2 ==> t3
% Assm [h4s_bools_IMPu_u_CONG]: !y_27 y x_27 x. (x <=> x_27) /\ (x_27 ==> (y <=> y_27)) ==> (x ==> y <=> x_27 ==> y_27)
% Assm [h4s_reals_REALu_u_LEu_u_REFL]: !x. h4/real/real__lte x x
% Assm [h4s_reals_REALu_u_LEu_u_TRANS]: !z y x. h4/real/real__lte x y /\ h4/real/real__lte y z ==> h4/real/real__lte x z
% Assm [h4s_transcs_DINTu_u_UNIQ]: !k2 k1 f b a. h4/real/real__lte a b /\ h4/transc/Dint (h4/pair/_2C a b) f k1 /\ h4/transc/Dint (h4/pair/_2C a b) f k2 ==> k1 = k2
% Assm [h4s_integrals_integrableu_u_def]: !f b a. h4/integral/integrable (h4/pair/_2C a b) f <=> (?i. h4/transc/Dint (h4/pair/_2C a b) f i)
% Assm [h4s_integrals_integralu_u_def]: !_0. (!a b f i. happ (happ (happ (happ _0 a) b) f) i <=> h4/transc/Dint (h4/pair/_2C a b) f i) ==> (!f b a. h4/integral/integral (h4/pair/_2C a b) f = h4/min/_40 (happ (happ (happ _0 a) b) f))
% Assm [h4s_integrals_DINTu_u_COMBINE]: !j i f c b a. h4/real/real__lte a b /\ h4/real/real__lte b c /\ h4/transc/Dint (h4/pair/_2C a b) f i /\ h4/transc/Dint (h4/pair/_2C b c) f j ==> h4/transc/Dint (h4/pair/_2C a c) f (h4/realax/real__add i j)
% Assm [h4s_integrals_INTEGRABLEu_u_SUBINTERVAL]: !f d c b a. h4/real/real__lte a c /\ h4/real/real__lte c d /\ h4/real/real__lte d b /\ h4/integral/integrable (h4/pair/_2C a b) f ==> h4/integral/integrable (h4/pair/_2C c d) f
% Goal: !f c b a. h4/real/real__lte a b /\ h4/real/real__lte b c /\ h4/integral/integrable (h4/pair/_2C a c) f ==> h4/integral/integral (h4/pair/_2C a c) f = h4/realax/real__add (h4/integral/integral (h4/pair/_2C a b) f) (h4/integral/integral (h4/pair/_2C b c) 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_Q273514,TV_Q273510]: ![V_f, V_g]: (![V_x]: s(TV_Q273510,happ(s(t_fun(TV_Q273514,TV_Q273510),V_f),s(TV_Q273514,V_x))) = s(TV_Q273510,happ(s(t_fun(TV_Q273514,TV_Q273510),V_g),s(TV_Q273514,V_x))) => s(t_fun(TV_Q273514,TV_Q273510),V_f) = s(t_fun(TV_Q273514,TV_Q273510),V_g))).
fof(ah4s_bools_TRUTH, axiom, p(s(t_bool,t))).
fof(ah4s_bools_EQu_u_SYMu_u_EQ, axiom, ![TV_u_27a]: ![V_y, V_x]: (s(TV_u_27a,V_x) = s(TV_u_27a,V_y) <=> s(TV_u_27a,V_y) = s(TV_u_27a,V_x))).
fof(ah4s_bools_EQu_u_CLAUSESu_c1, axiom, ![V_t]: (s(t_bool,V_t) = s(t_bool,t) <=> p(s(t_bool,V_t)))).
fof(ah4s_bools_SELECTu_u_ELIMu_u_THM, axiom, ![TV_u_27a]: ![V_Q, V_P]: ((?[V_x]: p(s(t_bool,happ(s(t_fun(TV_u_27a,t_bool),V_P),s(TV_u_27a,V_x)))) & ![V_x]: (p(s(t_bool,happ(s(t_fun(TV_u_27a,t_bool),V_P),s(TV_u_27a,V_x)))) => p(s(t_bool,happ(s(t_fun(TV_u_27a,t_bool),V_Q),s(TV_u_27a,V_x)))))) => p(s(t_bool,happ(s(t_fun(TV_u_27a,t_bool),V_Q),s(TV_u_27a,h4s_mins_u_40(s(t_fun(TV_u_27a,t_bool),V_P)))))))).
fof(ah4s_bools_ANDu_u_IMPu_u_INTRO, axiom, ![V_t3, V_t2, V_t1]: ((p(s(t_bool,V_t1)) => (p(s(t_bool,V_t2)) => p(s(t_bool,V_t3)))) <=> ((p(s(t_bool,V_t1)) & p(s(t_bool,V_t2))) => p(s(t_bool,V_t3))))).
fof(ah4s_bools_IMPu_u_CONG, axiom, ![V_yu_27, V_y, V_xu_27, V_x]: ((s(t_bool,V_x) = s(t_bool,V_xu_27) & (p(s(t_bool,V_xu_27)) => s(t_bool,V_y) = s(t_bool,V_yu_27))) => ((p(s(t_bool,V_x)) => p(s(t_bool,V_y))) <=> (p(s(t_bool,V_xu_27)) => p(s(t_bool,V_yu_27)))))).
fof(ah4s_reals_REALu_u_LEu_u_REFL, axiom, ![V_x]: p(s(t_bool,h4s_reals_realu_u_lte(s(t_h4s_realaxs_real,V_x),s(t_h4s_realaxs_real,V_x))))).
fof(ah4s_reals_REALu_u_LEu_u_TRANS, axiom, ![V_z, V_y, V_x]: ((p(s(t_bool,h4s_reals_realu_u_lte(s(t_h4s_realaxs_real,V_x),s(t_h4s_realaxs_real,V_y)))) & p(s(t_bool,h4s_reals_realu_u_lte(s(t_h4s_realaxs_real,V_y),s(t_h4s_realaxs_real,V_z))))) => p(s(t_bool,h4s_reals_realu_u_lte(s(t_h4s_realaxs_real,V_x),s(t_h4s_realaxs_real,V_z)))))).
fof(ah4s_transcs_DINTu_u_UNIQ, axiom, ![V_k2, V_k1, V_f, V_b, V_a]: ((p(s(t_bool,h4s_reals_realu_u_lte(s(t_h4s_realaxs_real,V_a),s(t_h4s_realaxs_real,V_b)))) & (p(s(t_bool,h4s_transcs_dint(s(t_h4s_pairs_prod(t_h4s_realaxs_real,t_h4s_realaxs_real),h4s_pairs_u_2c(s(t_h4s_realaxs_real,V_a),s(t_h4s_realaxs_real,V_b))),s(t_fun(t_h4s_realaxs_real,t_h4s_realaxs_real),V_f),s(t_h4s_realaxs_real,V_k1)))) & p(s(t_bool,h4s_transcs_dint(s(t_h4s_pairs_prod(t_h4s_realaxs_real,t_h4s_realaxs_real),h4s_pairs_u_2c(s(t_h4s_realaxs_real,V_a),s(t_h4s_realaxs_real,V_b))),s(t_fun(t_h4s_realaxs_real,t_h4s_realaxs_real),V_f),s(t_h4s_realaxs_real,V_k2)))))) => s(t_h4s_realaxs_real,V_k1) = s(t_h4s_realaxs_real,V_k2))).
fof(ah4s_integrals_integrableu_u_def, axiom, ![V_f, V_b, V_a]: (p(s(t_bool,h4s_integrals_integrable(s(t_h4s_pairs_prod(t_h4s_realaxs_real,t_h4s_realaxs_real),h4s_pairs_u_2c(s(t_h4s_realaxs_real,V_a),s(t_h4s_realaxs_real,V_b))),s(t_fun(t_h4s_realaxs_real,t_h4s_realaxs_real),V_f)))) <=> ?[V_i]: p(s(t_bool,h4s_transcs_dint(s(t_h4s_pairs_prod(t_h4s_realaxs_real,t_h4s_realaxs_real),h4s_pairs_u_2c(s(t_h4s_realaxs_real,V_a),s(t_h4s_realaxs_real,V_b))),s(t_fun(t_h4s_realaxs_real,t_h4s_realaxs_real),V_f),s(t_h4s_realaxs_real,V_i)))))).
fof(ah4s_integrals_integralu_u_def, axiom, ![V_uu_0]: (![V_a, V_b, V_f, V_i]: s(t_bool,happ(s(t_fun(t_h4s_realaxs_real,t_bool),happ(s(t_fun(t_fun(t_h4s_realaxs_real,t_h4s_realaxs_real),t_fun(t_h4s_realaxs_real,t_bool)),happ(s(t_fun(t_h4s_realaxs_real,t_fun(t_fun(t_h4s_realaxs_real,t_h4s_realaxs_real),t_fun(t_h4s_realaxs_real,t_bool))),happ(s(t_fun(t_h4s_realaxs_real,t_fun(t_h4s_realaxs_real,t_fun(t_fun(t_h4s_realaxs_real,t_h4s_realaxs_real),t_fun(t_h4s_realaxs_real,t_bool)))),V_uu_0),s(t_h4s_realaxs_real,V_a))),s(t_h4s_realaxs_real,V_b))),s(t_fun(t_h4s_realaxs_real,t_h4s_realaxs_real),V_f))),s(t_h4s_realaxs_real,V_i))) = s(t_bool,h4s_transcs_dint(s(t_h4s_pairs_prod(t_h4s_realaxs_real,t_h4s_realaxs_real),h4s_pairs_u_2c(s(t_h4s_realaxs_real,V_a),s(t_h4s_realaxs_real,V_b))),s(t_fun(t_h4s_realaxs_real,t_h4s_realaxs_real),V_f),s(t_h4s_realaxs_real,V_i))) => ![V_f, V_b, V_a]: s(t_h4s_realaxs_real,h4s_integrals_integral(s(t_h4s_pairs_prod(t_h4s_realaxs_real,t_h4s_realaxs_real),h4s_pairs_u_2c(s(t_h4s_realaxs_real,V_a),s(t_h4s_realaxs_real,V_b))),s(t_fun(t_h4s_realaxs_real,t_h4s_realaxs_real),V_f))) = s(t_h4s_realaxs_real,h4s_mins_u_40(s(t_fun(t_h4s_realaxs_real,t_bool),happ(s(t_fun(t_fun(t_h4s_realaxs_real,t_h4s_realaxs_real),t_fun(t_h4s_realaxs_real,t_bool)),happ(s(t_fun(t_h4s_realaxs_real,t_fun(t_fun(t_h4s_realaxs_real,t_h4s_realaxs_real),t_fun(t_h4s_realaxs_real,t_bool))),happ(s(t_fun(t_h4s_realaxs_real,t_fun(t_h4s_realaxs_real,t_fun(t_fun(t_h4s_realaxs_real,t_h4s_realaxs_real),t_fun(t_h4s_realaxs_real,t_bool)))),V_uu_0),s(t_h4s_realaxs_real,V_a))),s(t_h4s_realaxs_real,V_b))),s(t_fun(t_h4s_realaxs_real,t_h4s_realaxs_real),V_f))))))).
fof(ah4s_integrals_DINTu_u_COMBINE, axiom, ![V_j, V_i, V_f, V_c, V_b, V_a]: ((p(s(t_bool,h4s_reals_realu_u_lte(s(t_h4s_realaxs_real,V_a),s(t_h4s_realaxs_real,V_b)))) & (p(s(t_bool,h4s_reals_realu_u_lte(s(t_h4s_realaxs_real,V_b),s(t_h4s_realaxs_real,V_c)))) & (p(s(t_bool,h4s_transcs_dint(s(t_h4s_pairs_prod(t_h4s_realaxs_real,t_h4s_realaxs_real),h4s_pairs_u_2c(s(t_h4s_realaxs_real,V_a),s(t_h4s_realaxs_real,V_b))),s(t_fun(t_h4s_realaxs_real,t_h4s_realaxs_real),V_f),s(t_h4s_realaxs_real,V_i)))) & p(s(t_bool,h4s_transcs_dint(s(t_h4s_pairs_prod(t_h4s_realaxs_real,t_h4s_realaxs_real),h4s_pairs_u_2c(s(t_h4s_realaxs_real,V_b),s(t_h4s_realaxs_real,V_c))),s(t_fun(t_h4s_realaxs_real,t_h4s_realaxs_real),V_f),s(t_h4s_realaxs_real,V_j))))))) => p(s(t_bool,h4s_transcs_dint(s(t_h4s_pairs_prod(t_h4s_realaxs_real,t_h4s_realaxs_real),h4s_pairs_u_2c(s(t_h4s_realaxs_real,V_a),s(t_h4s_realaxs_real,V_c))),s(t_fun(t_h4s_realaxs_real,t_h4s_realaxs_real),V_f),s(t_h4s_realaxs_real,h4s_realaxs_realu_u_add(s(t_h4s_realaxs_real,V_i),s(t_h4s_realaxs_real,V_j)))))))).
fof(ah4s_integrals_INTEGRABLEu_u_SUBINTERVAL, axiom, ![V_f, V_d, V_c, V_b, V_a]: ((p(s(t_bool,h4s_reals_realu_u_lte(s(t_h4s_realaxs_real,V_a),s(t_h4s_realaxs_real,V_c)))) & (p(s(t_bool,h4s_reals_realu_u_lte(s(t_h4s_realaxs_real,V_c),s(t_h4s_realaxs_real,V_d)))) & (p(s(t_bool,h4s_reals_realu_u_lte(s(t_h4s_realaxs_real,V_d),s(t_h4s_realaxs_real,V_b)))) & p(s(t_bool,h4s_integrals_integrable(s(t_h4s_pairs_prod(t_h4s_realaxs_real,t_h4s_realaxs_real),h4s_pairs_u_2c(s(t_h4s_realaxs_real,V_a),s(t_h4s_realaxs_real,V_b))),s(t_fun(t_h4s_realaxs_real,t_h4s_realaxs_real),V_f))))))) => p(s(t_bool,h4s_integrals_integrable(s(t_h4s_pairs_prod(t_h4s_realaxs_real,t_h4s_realaxs_real),h4s_pairs_u_2c(s(t_h4s_realaxs_real,V_c),s(t_h4s_realaxs_real,V_d))),s(t_fun(t_h4s_realaxs_real,t_h4s_realaxs_real),V_f)))))).
fof(ch4s_integrals_INTEGRALu_u_COMBINE, conjecture, ![V_f, V_c, V_b, V_a]: ((p(s(t_bool,h4s_reals_realu_u_lte(s(t_h4s_realaxs_real,V_a),s(t_h4s_realaxs_real,V_b)))) & (p(s(t_bool,h4s_reals_realu_u_lte(s(t_h4s_realaxs_real,V_b),s(t_h4s_realaxs_real,V_c)))) & p(s(t_bool,h4s_integrals_integrable(s(t_h4s_pairs_prod(t_h4s_realaxs_real,t_h4s_realaxs_real),h4s_pairs_u_2c(s(t_h4s_realaxs_real,V_a),s(t_h4s_realaxs_real,V_c))),s(t_fun(t_h4s_realaxs_real,t_h4s_realaxs_real),V_f)))))) => s(t_h4s_realaxs_real,h4s_integrals_integral(s(t_h4s_pairs_prod(t_h4s_realaxs_real,t_h4s_realaxs_real),h4s_pairs_u_2c(s(t_h4s_realaxs_real,V_a),s(t_h4s_realaxs_real,V_c))),s(t_fun(t_h4s_realaxs_real,t_h4s_realaxs_real),V_f))) = s(t_h4s_realaxs_real,h4s_realaxs_realu_u_add(s(t_h4s_realaxs_real,h4s_integrals_integral(s(t_h4s_pairs_prod(t_h4s_realaxs_real,t_h4s_realaxs_real),h4s_pairs_u_2c(s(t_h4s_realaxs_real,V_a),s(t_h4s_realaxs_real,V_b))),s(t_fun(t_h4s_realaxs_real,t_h4s_realaxs_real),V_f))),s(t_h4s_realaxs_real,h4s_integrals_integral(s(t_h4s_pairs_prod(t_h4s_realaxs_real,t_h4s_realaxs_real),h4s_pairs_u_2c(s(t_h4s_realaxs_real,V_b),s(t_h4s_realaxs_real,V_c))),s(t_fun(t_h4s_realaxs_real,t_h4s_realaxs_real),V_f))))))).
