%   ORIGINAL: h4/sorting/PERM3
% 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/FORALL__SIMP: !t. (!x. t) <=> t
% Assm: h4/bool/IMP__CLAUSES_c1: !t. t ==> T <=> T
% Assm: h4/bool/REFL__CLAUSE: !x. x = x <=> T
% Assm: h4/bool/EQ__SYM__EQ: !y x. x = y <=> y = x
% 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/list/FILTER__APPEND__DISTRIB: !P M L. h4/list/FILTER P (h4/list/APPEND L M) = h4/list/APPEND (h4/list/FILTER P L) (h4/list/FILTER P M)
% Assm: h4/sorting/PERM__DEF: !L2 L1. h4/sorting/PERM L1 L2 <=> (!x. h4/list/FILTER ($equals x) L1 = h4/list/FILTER ($equals x) L2)
% Goal: !x c_27 c b_27 b a_27 a. (h4/sorting/PERM a a_27 /\ h4/sorting/PERM b b_27 /\ h4/sorting/PERM c c_27) /\ h4/sorting/PERM x (h4/list/APPEND (h4/list/APPEND a b) c) ==> h4/sorting/PERM x (h4/list/APPEND (h4/list/APPEND a_27 b_27) c_27)
%   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_FORALLu_u_SIMP]: !t. (!x. t) <=> t
% Assm [h4s_bools_IMPu_u_CLAUSESu_c1]: !t. t ==> T <=> T
% Assm [h4s_bools_REFLu_u_CLAUSE]: !x. x = x <=> T
% Assm [h4s_bools_EQu_u_SYMu_u_EQ]: !y x. x = y <=> y = x
% 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_lists_FILTERu_u_APPENDu_u_DISTRIB]: !P M L. h4/list/FILTER P (h4/list/APPEND L M) = h4/list/APPEND (h4/list/FILTER P L) (h4/list/FILTER P M)
% Assm [h4s_sortings_PERMu_u_DEF]: !L2 L1. h4/sorting/PERM L1 L2 <=> (!x. h4/list/FILTER ($equals x) L1 = h4/list/FILTER ($equals x) L2)
% Goal: !x c_27 c b_27 b a_27 a. (h4/sorting/PERM a a_27 /\ h4/sorting/PERM b b_27 /\ h4/sorting/PERM c c_27) /\ h4/sorting/PERM x (h4/list/APPEND (h4/list/APPEND a b) c) ==> h4/sorting/PERM x (h4/list/APPEND (h4/list/APPEND a_27 b_27) c_27)
fof(aHLu_TRUTH, axiom, p(s(t_bool,t))).
fof(aHLu_FALSITY, axiom, ~ (p(s(t_bool,f)))).
fof(aHLu_BOOLu_CASES, axiom, ![V_t]: (s(t_bool,V_t) = s(t_bool,t) | s(t_bool,V_t) = s(t_bool,f))).
fof(aHLu_EXT, axiom, ![TV_Q277210,TV_Q277206]: ![V_f, V_g]: (![V_x]: s(TV_Q277206,happ(s(t_fun(TV_Q277210,TV_Q277206),V_f),s(TV_Q277210,V_x))) = s(TV_Q277206,happ(s(t_fun(TV_Q277210,TV_Q277206),V_g),s(TV_Q277210,V_x))) => s(t_fun(TV_Q277210,TV_Q277206),V_f) = s(t_fun(TV_Q277210,TV_Q277206),V_g))).
fof(ah4s_bools_TRUTH, axiom, p(s(t_bool,t))).
fof(ah4s_bools_FORALLu_u_SIMP, axiom, ![TV_u_27a]: ![V_t]: (![V_x]: p(s(t_bool,V_t)) <=> p(s(t_bool,V_t)))).
fof(ah4s_bools_IMPu_u_CLAUSESu_c1, axiom, ![V_t]: ((p(s(t_bool,V_t)) => p(s(t_bool,t))) <=> p(s(t_bool,t)))).
fof(ah4s_bools_REFLu_u_CLAUSE, axiom, ![TV_u_27a]: ![V_x]: (s(TV_u_27a,V_x) = s(TV_u_27a,V_x) <=> 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_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_lists_FILTERu_u_APPENDu_u_DISTRIB, axiom, ![TV_u_27a]: ![V_P, V_M, V_L]: s(t_h4s_lists_list(TV_u_27a),h4s_lists_filter(s(t_fun(TV_u_27a,t_bool),V_P),s(t_h4s_lists_list(TV_u_27a),h4s_lists_append(s(t_h4s_lists_list(TV_u_27a),V_L),s(t_h4s_lists_list(TV_u_27a),V_M))))) = s(t_h4s_lists_list(TV_u_27a),h4s_lists_append(s(t_h4s_lists_list(TV_u_27a),h4s_lists_filter(s(t_fun(TV_u_27a,t_bool),V_P),s(t_h4s_lists_list(TV_u_27a),V_L))),s(t_h4s_lists_list(TV_u_27a),h4s_lists_filter(s(t_fun(TV_u_27a,t_bool),V_P),s(t_h4s_lists_list(TV_u_27a),V_M)))))).
fof(ah4s_sortings_PERMu_u_DEF, axiom, ![TV_u_27a]: ![V_L2, V_L1]: (p(s(t_bool,h4s_sortings_perm(s(t_h4s_lists_list(TV_u_27a),V_L1),s(t_h4s_lists_list(TV_u_27a),V_L2)))) <=> ![V_x]: s(t_h4s_lists_list(TV_u_27a),h4s_lists_filter(s(t_fun(TV_u_27a,t_bool),d_equals(s(TV_u_27a,V_x))),s(t_h4s_lists_list(TV_u_27a),V_L1))) = s(t_h4s_lists_list(TV_u_27a),h4s_lists_filter(s(t_fun(TV_u_27a,t_bool),d_equals(s(TV_u_27a,V_x))),s(t_h4s_lists_list(TV_u_27a),V_L2))))).
fof(ch4s_sortings_PERM3, conjecture, ![TV_u_27a]: ![V_x, V_cu_27, V_c, V_bu_27, V_b, V_au_27, V_a]: (((p(s(t_bool,h4s_sortings_perm(s(t_h4s_lists_list(TV_u_27a),V_a),s(t_h4s_lists_list(TV_u_27a),V_au_27)))) & (p(s(t_bool,h4s_sortings_perm(s(t_h4s_lists_list(TV_u_27a),V_b),s(t_h4s_lists_list(TV_u_27a),V_bu_27)))) & p(s(t_bool,h4s_sortings_perm(s(t_h4s_lists_list(TV_u_27a),V_c),s(t_h4s_lists_list(TV_u_27a),V_cu_27)))))) & p(s(t_bool,h4s_sortings_perm(s(t_h4s_lists_list(TV_u_27a),V_x),s(t_h4s_lists_list(TV_u_27a),h4s_lists_append(s(t_h4s_lists_list(TV_u_27a),h4s_lists_append(s(t_h4s_lists_list(TV_u_27a),V_a),s(t_h4s_lists_list(TV_u_27a),V_b))),s(t_h4s_lists_list(TV_u_27a),V_c))))))) => p(s(t_bool,h4s_sortings_perm(s(t_h4s_lists_list(TV_u_27a),V_x),s(t_h4s_lists_list(TV_u_27a),h4s_lists_append(s(t_h4s_lists_list(TV_u_27a),h4s_lists_append(s(t_h4s_lists_list(TV_u_27a),V_au_27),s(t_h4s_lists_list(TV_u_27a),V_bu_27))),s(t_h4s_lists_list(TV_u_27a),V_cu_27)))))))).
