%   ORIGINAL: h4/llist/LTL__THM_c0
% 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/IMP__ANTISYM__AX: !t2 t1. (t1 ==> t2) ==> (t2 ==> t1) ==> (t1 <=> t2)
% Assm: h4/bool/OR__CLAUSES_c0: !t. T \/ 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/EQ__CLAUSES_c1: !t. (t <=> T) <=> t
% 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/bool/COND__CONG: !y_27 y x_27 x Q P. (P <=> Q) /\ (Q ==> x = x_27) /\ (~Q ==> y = y_27) ==> h4/bool/COND P x y = h4/bool/COND Q x_27 y_27
% Assm: h4/bool/UNWIND__THM2: !a P. (?x. x = a /\ P x) <=> P a
% Assm: h4/option/option__case__def_c0: !v f. h4/option/option__CASE h4/option/NONE v f = v
% Assm: h4/llist/lrep__ok__def: !f. h4/llist/lrep__ok f <=> (?P. (!g. P g ==> g = (\n. h4/option/NONE) \/ (?h t. P t /\ g = (\n. h4/bool/COND (n = h4/num/0) (h4/option/SOME h) (t (h4/arithmetic/_2D n (h4/arithmetic/NUMERAL (h4/arithmetic/BIT1 h4/arithmetic/ZERO))))))) /\ P f)
% Assm: h4/llist/llist__absrep_c1: !r. h4/llist/lrep__ok r <=> h4/llist/llist__rep (h4/llist/llist__abs r) = r
% Assm: h4/llist/LNIL0: h4/llist/LNIL = h4/llist/llist__abs (\n. h4/option/NONE)
% Assm: h4/llist/LTL0: !ll. h4/llist/LTL ll = h4/option/option__CASE (h4/llist/LHD ll) h4/option/NONE (\v. h4/option/SOME (h4/llist/llist__abs (\n. h4/llist/llist__rep ll (h4/arithmetic/_2B n (h4/arithmetic/NUMERAL (h4/arithmetic/BIT1 h4/arithmetic/ZERO))))))
% Assm: h4/llist/LHD__THM_c0: h4/llist/LHD h4/llist/LNIL = h4/option/NONE
% Goal: h4/llist/LTL h4/llist/LNIL = h4/option/NONE
%   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_IMPu_u_ANTISYMu_u_AX]: !t2 t1. (t1 ==> t2) ==> (t2 ==> t1) ==> (t1 <=> t2)
% Assm [h4s_bools_ORu_u_CLAUSESu_c0]: !t. T \/ 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_EQu_u_CLAUSESu_c1]: !t. (t <=> T) <=> t
% 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_bools_CONDu_u_CONG]: !y_27 y x_27 x Q P. (P <=> Q) /\ (Q ==> x = x_27) /\ (~Q ==> y = y_27) ==> h4/bool/COND P x y = h4/bool/COND Q x_27 y_27
% Assm [h4s_bools_UNWINDu_u_THM2]: !a P. (?x. x = a /\ happ P x) <=> happ P a
% Assm [h4s_options_optionu_u_caseu_u_defu_c0]: !v f. h4/option/option__CASE h4/option/NONE v f = v
% Assm [h4s_llists_lrepu_u_oku_u_def]: !f. h4/llist/lrep__ok f <=> (?P. (!g. happ P g ==> (!x. happ g x = h4/option/NONE) \/ (?h t. happ P t /\ (!x. ?v. (v <=> x = h4/num/0) /\ happ g x = h4/bool/COND v (h4/option/SOME h) (happ t (h4/arithmetic/_2D x (h4/arithmetic/NUMERAL (h4/arithmetic/BIT1 h4/arithmetic/ZERO))))))) /\ happ P f)
% Assm [h4s_llists_llistu_u_absrepu_c1]: !r. h4/llist/lrep__ok r <=> h4/llist/llist__rep (h4/llist/llist__abs r) = r
% Assm [h4s_llists_LNIL0]: !_0. (!n. happ _0 n = h4/option/NONE) ==> h4/llist/LNIL = h4/llist/llist__abs _0
% Assm [h4s_llists_LTL0]: !_1. (!ll n. happ (happ _1 ll) n = happ (h4/llist/llist__rep ll) (h4/arithmetic/_2B n (h4/arithmetic/NUMERAL (h4/arithmetic/BIT1 h4/arithmetic/ZERO)))) ==> (!_0. (!ll v. happ (happ _0 ll) v = h4/option/SOME (h4/llist/llist__abs (happ _1 ll))) ==> (!ll. h4/llist/LTL ll = h4/option/option__CASE (h4/llist/LHD ll) h4/option/NONE (happ _0 ll)))
% Assm [h4s_llists_LHDu_u_THMu_c0]: h4/llist/LHD h4/llist/LNIL = h4/option/NONE
% Goal: h4/llist/LTL h4/llist/LNIL = h4/option/NONE
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_Q168989,TV_Q168985]: ![V_f, V_g]: (![V_x]: s(TV_Q168985,happ(s(t_fun(TV_Q168989,TV_Q168985),V_f),s(TV_Q168989,V_x))) = s(TV_Q168985,happ(s(t_fun(TV_Q168989,TV_Q168985),V_g),s(TV_Q168989,V_x))) => s(t_fun(TV_Q168989,TV_Q168985),V_f) = s(t_fun(TV_Q168989,TV_Q168985),V_g))).
fof(ah4s_bools_TRUTH, axiom, p(s(t_bool,t))).
fof(ah4s_bools_IMPu_u_ANTISYMu_u_AX, axiom, ![V_t2, V_t1]: ((p(s(t_bool,V_t1)) => p(s(t_bool,V_t2))) => ((p(s(t_bool,V_t2)) => p(s(t_bool,V_t1))) => s(t_bool,V_t1) = s(t_bool,V_t2)))).
fof(ah4s_bools_ORu_u_CLAUSESu_c0, axiom, ![V_t]: ((p(s(t_bool,t)) | p(s(t_bool,V_t))) <=> p(s(t_bool,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_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_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_bools_CONDu_u_CONG, axiom, ![TV_u_27a]: ![V_yu_27, V_y, V_xu_27, V_x, V_Q, V_P]: ((s(t_bool,V_P) = s(t_bool,V_Q) & ((p(s(t_bool,V_Q)) => s(TV_u_27a,V_x) = s(TV_u_27a,V_xu_27)) & (~ (p(s(t_bool,V_Q))) => s(TV_u_27a,V_y) = s(TV_u_27a,V_yu_27)))) => s(TV_u_27a,h4s_bools_cond(s(t_bool,V_P),s(TV_u_27a,V_x),s(TV_u_27a,V_y))) = s(TV_u_27a,h4s_bools_cond(s(t_bool,V_Q),s(TV_u_27a,V_xu_27),s(TV_u_27a,V_yu_27))))).
fof(ah4s_bools_UNWINDu_u_THM2, axiom, ![TV_u_27a]: ![V_a, V_P]: (?[V_x]: (s(TV_u_27a,V_x) = s(TV_u_27a,V_a) & 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_P),s(TV_u_27a,V_a)))))).
fof(ah4s_options_optionu_u_caseu_u_defu_c0, axiom, ![TV_u_27a,TV_u_27b]: ![V_v, V_f]: s(TV_u_27b,h4s_options_optionu_u_case(s(t_h4s_options_option(TV_u_27a),h4s_options_none),s(TV_u_27b,V_v),s(t_fun(TV_u_27a,TV_u_27b),V_f))) = s(TV_u_27b,V_v)).
fof(ah4s_llists_lrepu_u_oku_u_def, axiom, ![TV_u_27a]: ![V_f]: (p(s(t_bool,h4s_llists_lrepu_u_ok(s(t_fun(t_h4s_nums_num,t_h4s_options_option(TV_u_27a)),V_f)))) <=> ?[V_P]: (![V_g]: (p(s(t_bool,happ(s(t_fun(t_fun(t_h4s_nums_num,t_h4s_options_option(TV_u_27a)),t_bool),V_P),s(t_fun(t_h4s_nums_num,t_h4s_options_option(TV_u_27a)),V_g)))) => (![V_x]: s(t_h4s_options_option(TV_u_27a),happ(s(t_fun(t_h4s_nums_num,t_h4s_options_option(TV_u_27a)),V_g),s(t_h4s_nums_num,V_x))) = s(t_h4s_options_option(TV_u_27a),h4s_options_none) | ?[V_h, V_t]: (p(s(t_bool,happ(s(t_fun(t_fun(t_h4s_nums_num,t_h4s_options_option(TV_u_27a)),t_bool),V_P),s(t_fun(t_h4s_nums_num,t_h4s_options_option(TV_u_27a)),V_t)))) & ![V_x]: ?[V_v]: ((p(s(t_bool,V_v)) <=> s(t_h4s_nums_num,V_x) = s(t_h4s_nums_num,h4s_nums_0)) & s(t_h4s_options_option(TV_u_27a),happ(s(t_fun(t_h4s_nums_num,t_h4s_options_option(TV_u_27a)),V_g),s(t_h4s_nums_num,V_x))) = s(t_h4s_options_option(TV_u_27a),h4s_bools_cond(s(t_bool,V_v),s(t_h4s_options_option(TV_u_27a),h4s_options_some(s(TV_u_27a,V_h))),s(t_h4s_options_option(TV_u_27a),happ(s(t_fun(t_h4s_nums_num,t_h4s_options_option(TV_u_27a)),V_t),s(t_h4s_nums_num,h4s_arithmetics_u_2d(s(t_h4s_nums_num,V_x),s(t_h4s_nums_num,h4s_arithmetics_numeral(s(t_h4s_nums_num,h4s_arithmetics_bit1(s(t_h4s_nums_num,h4s_arithmetics_zero))))))))))))))) & p(s(t_bool,happ(s(t_fun(t_fun(t_h4s_nums_num,t_h4s_options_option(TV_u_27a)),t_bool),V_P),s(t_fun(t_h4s_nums_num,t_h4s_options_option(TV_u_27a)),V_f))))))).
fof(ah4s_llists_llistu_u_absrepu_c1, axiom, ![TV_u_27a]: ![V_r]: (p(s(t_bool,h4s_llists_lrepu_u_ok(s(t_fun(t_h4s_nums_num,t_h4s_options_option(TV_u_27a)),V_r)))) <=> s(t_fun(t_h4s_nums_num,t_h4s_options_option(TV_u_27a)),h4s_llists_llistu_u_rep(s(t_h4s_llists_llist(TV_u_27a),h4s_llists_llistu_u_abs(s(t_fun(t_h4s_nums_num,t_h4s_options_option(TV_u_27a)),V_r))))) = s(t_fun(t_h4s_nums_num,t_h4s_options_option(TV_u_27a)),V_r))).
fof(ah4s_llists_LNIL0, axiom, ![TV_u_27a]: ![V_uu_0]: (![V_n]: s(t_h4s_options_option(TV_u_27a),happ(s(t_fun(t_h4s_nums_num,t_h4s_options_option(TV_u_27a)),V_uu_0),s(t_h4s_nums_num,V_n))) = s(t_h4s_options_option(TV_u_27a),h4s_options_none) => s(t_h4s_llists_llist(TV_u_27a),h4s_llists_lnil) = s(t_h4s_llists_llist(TV_u_27a),h4s_llists_llistu_u_abs(s(t_fun(t_h4s_nums_num,t_h4s_options_option(TV_u_27a)),V_uu_0))))).
fof(ah4s_llists_LTL0, axiom, ![TV_u_27a]: ![V_uu_1]: (![V_ll, V_n]: s(t_h4s_options_option(TV_u_27a),happ(s(t_fun(t_h4s_nums_num,t_h4s_options_option(TV_u_27a)),happ(s(t_fun(t_h4s_llists_llist(TV_u_27a),t_fun(t_h4s_nums_num,t_h4s_options_option(TV_u_27a))),V_uu_1),s(t_h4s_llists_llist(TV_u_27a),V_ll))),s(t_h4s_nums_num,V_n))) = s(t_h4s_options_option(TV_u_27a),happ(s(t_fun(t_h4s_nums_num,t_h4s_options_option(TV_u_27a)),h4s_llists_llistu_u_rep(s(t_h4s_llists_llist(TV_u_27a),V_ll))),s(t_h4s_nums_num,h4s_arithmetics_u_2b(s(t_h4s_nums_num,V_n),s(t_h4s_nums_num,h4s_arithmetics_numeral(s(t_h4s_nums_num,h4s_arithmetics_bit1(s(t_h4s_nums_num,h4s_arithmetics_zero))))))))) => ![V_uu_0]: (![V_ll, V_v]: s(t_h4s_options_option(t_h4s_llists_llist(TV_u_27a)),happ(s(t_fun(TV_u_27a,t_h4s_options_option(t_h4s_llists_llist(TV_u_27a))),happ(s(t_fun(t_h4s_llists_llist(TV_u_27a),t_fun(TV_u_27a,t_h4s_options_option(t_h4s_llists_llist(TV_u_27a)))),V_uu_0),s(t_h4s_llists_llist(TV_u_27a),V_ll))),s(TV_u_27a,V_v))) = s(t_h4s_options_option(t_h4s_llists_llist(TV_u_27a)),h4s_options_some(s(t_h4s_llists_llist(TV_u_27a),h4s_llists_llistu_u_abs(s(t_fun(t_h4s_nums_num,t_h4s_options_option(TV_u_27a)),happ(s(t_fun(t_h4s_llists_llist(TV_u_27a),t_fun(t_h4s_nums_num,t_h4s_options_option(TV_u_27a))),V_uu_1),s(t_h4s_llists_llist(TV_u_27a),V_ll))))))) => ![V_ll]: s(t_h4s_options_option(t_h4s_llists_llist(TV_u_27a)),h4s_llists_ltl(s(t_h4s_llists_llist(TV_u_27a),V_ll))) = s(t_h4s_options_option(t_h4s_llists_llist(TV_u_27a)),h4s_options_optionu_u_case(s(t_h4s_options_option(TV_u_27a),h4s_llists_lhd(s(t_h4s_llists_llist(TV_u_27a),V_ll))),s(t_h4s_options_option(t_h4s_llists_llist(TV_u_27a)),h4s_options_none),s(t_fun(TV_u_27a,t_h4s_options_option(t_h4s_llists_llist(TV_u_27a))),happ(s(t_fun(t_h4s_llists_llist(TV_u_27a),t_fun(TV_u_27a,t_h4s_options_option(t_h4s_llists_llist(TV_u_27a)))),V_uu_0),s(t_h4s_llists_llist(TV_u_27a),V_ll)))))))).
fof(ah4s_llists_LHDu_u_THMu_c0, axiom, ![TV_u_27a]: s(t_h4s_options_option(TV_u_27a),h4s_llists_lhd(s(t_h4s_llists_llist(TV_u_27a),h4s_llists_lnil))) = s(t_h4s_options_option(TV_u_27a),h4s_options_none)).
fof(ch4s_llists_LTLu_u_THMu_c0, conjecture, ![TV_u_27a]: s(t_h4s_options_option(t_h4s_llists_llist(TV_u_27a)),h4s_llists_ltl(s(t_h4s_llists_llist(TV_u_27a),h4s_llists_lnil))) = s(t_h4s_options_option(t_h4s_llists_llist(TV_u_27a)),h4s_options_none)).
