%   ORIGINAL: h4/pred__set/LESS__CARD__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/bool/FALSITY: !t. F ==> t
% Assm: h4/bool/EQ__SYM__EQ: !y x. x = y <=> y = x
% Assm: h4/arithmetic/LESS__OR__EQ: !n m. h4/arithmetic/_3C_3D m n <=> h4/prim__rec/_3C m n \/ m = n
% Assm: h4/arithmetic/NOT__LESS: !n m. ~h4/prim__rec/_3C m n <=> h4/arithmetic/_3C_3D n m
% Assm: h4/arithmetic/SUB__LESS__0: !n m. h4/prim__rec/_3C m n <=> h4/prim__rec/_3C h4/num/0 (h4/arithmetic/_2D n m)
% Assm: h4/pred__set/INTER__COMM: !t s. h4/pred__set/INTER s t = h4/pred__set/INTER t s
% Assm: h4/pred__set/CARD__INTER__LESS__EQ: !s. h4/pred__set/FINITE s ==> (!t. h4/arithmetic/_3C_3D (h4/pred__set/CARD (h4/pred__set/INTER s t)) (h4/pred__set/CARD s))
% Assm: h4/pred__set/CARD__DIFF: !t. h4/pred__set/FINITE t ==> (!s. h4/pred__set/FINITE s ==> h4/pred__set/CARD (h4/pred__set/DIFF s t) = h4/arithmetic/_2D (h4/pred__set/CARD s) (h4/pred__set/CARD (h4/pred__set/INTER s t)))
% Goal: !t. h4/pred__set/FINITE t ==> (!s. h4/pred__set/FINITE s ==> h4/prim__rec/_3C (h4/pred__set/CARD t) (h4/pred__set/CARD s) ==> h4/prim__rec/_3C h4/num/0 (h4/pred__set/CARD (h4/pred__set/DIFF s t)))
%   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_FALSITY]: !t. F ==> t
% Assm [h4s_bools_EQu_u_SYMu_u_EQ]: !y x. x = y <=> y = x
% Assm [h4s_arithmetics_LESSu_u_ORu_u_EQ]: !n m. h4/arithmetic/_3C_3D m n <=> h4/prim__rec/_3C m n \/ m = n
% Assm [h4s_arithmetics_NOTu_u_LESS]: !n m. ~h4/prim__rec/_3C m n <=> h4/arithmetic/_3C_3D n m
% Assm [h4s_arithmetics_SUBu_u_LESSu_u_0]: !n m. h4/prim__rec/_3C m n <=> h4/prim__rec/_3C h4/num/0 (h4/arithmetic/_2D n m)
% Assm [h4s_predu_u_sets_INTERu_u_COMM]: !t s. h4/pred__set/INTER s t = h4/pred__set/INTER t s
% Assm [h4s_predu_u_sets_CARDu_u_INTERu_u_LESSu_u_EQ]: !s. h4/pred__set/FINITE s ==> (!t. h4/arithmetic/_3C_3D (h4/pred__set/CARD (h4/pred__set/INTER s t)) (h4/pred__set/CARD s))
% Assm [h4s_predu_u_sets_CARDu_u_DIFF]: !t. h4/pred__set/FINITE t ==> (!s. h4/pred__set/FINITE s ==> h4/pred__set/CARD (h4/pred__set/DIFF s t) = h4/arithmetic/_2D (h4/pred__set/CARD s) (h4/pred__set/CARD (h4/pred__set/INTER s t)))
% Goal: !t. h4/pred__set/FINITE t ==> (!s. h4/pred__set/FINITE s ==> h4/prim__rec/_3C (h4/pred__set/CARD t) (h4/pred__set/CARD s) ==> h4/prim__rec/_3C h4/num/0 (h4/pred__set/CARD (h4/pred__set/DIFF s t)))
fof(aHLu_TRUTH, axiom, p(s(t_bool,t0))).
fof(aHLu_FALSITY, axiom, ~ (p(s(t_bool,f)))).
fof(aHLu_BOOLu_CASES, axiom, ![V_t]: (s(t_bool,V_t) = s(t_bool,t0) | s(t_bool,V_t) = s(t_bool,f))).
fof(aHLu_EXT, axiom, ![TV_Q151860,TV_Q151856]: ![V_f, V_g]: (![V_x]: s(TV_Q151856,happ(s(t_fun(TV_Q151860,TV_Q151856),V_f),s(TV_Q151860,V_x))) = s(TV_Q151856,happ(s(t_fun(TV_Q151860,TV_Q151856),V_g),s(TV_Q151860,V_x))) => s(t_fun(TV_Q151860,TV_Q151856),V_f) = s(t_fun(TV_Q151860,TV_Q151856),V_g))).
fof(ah4s_bools_FALSITY, axiom, ![V_t]: (p(s(t_bool,f)) => p(s(t_bool,V_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_arithmetics_LESSu_u_ORu_u_EQ, axiom, ![V_n, V_m]: (p(s(t_bool,h4s_arithmetics_u_3cu_3d(s(t_h4s_nums_num,V_m),s(t_h4s_nums_num,V_n)))) <=> (p(s(t_bool,h4s_primu_u_recs_u_3c(s(t_h4s_nums_num,V_m),s(t_h4s_nums_num,V_n)))) | s(t_h4s_nums_num,V_m) = s(t_h4s_nums_num,V_n)))).
fof(ah4s_arithmetics_NOTu_u_LESS, axiom, ![V_n, V_m]: (~ (p(s(t_bool,h4s_primu_u_recs_u_3c(s(t_h4s_nums_num,V_m),s(t_h4s_nums_num,V_n))))) <=> p(s(t_bool,h4s_arithmetics_u_3cu_3d(s(t_h4s_nums_num,V_n),s(t_h4s_nums_num,V_m)))))).
fof(ah4s_arithmetics_SUBu_u_LESSu_u_0, axiom, ![V_n, V_m]: s(t_bool,h4s_primu_u_recs_u_3c(s(t_h4s_nums_num,V_m),s(t_h4s_nums_num,V_n))) = s(t_bool,h4s_primu_u_recs_u_3c(s(t_h4s_nums_num,h4s_nums_0),s(t_h4s_nums_num,h4s_arithmetics_u_2d(s(t_h4s_nums_num,V_n),s(t_h4s_nums_num,V_m)))))).
fof(ah4s_predu_u_sets_INTERu_u_COMM, axiom, ![TV_u_27a]: ![V_t, V_s]: s(t_fun(TV_u_27a,t_bool),h4s_predu_u_sets_inter(s(t_fun(TV_u_27a,t_bool),V_s),s(t_fun(TV_u_27a,t_bool),V_t))) = s(t_fun(TV_u_27a,t_bool),h4s_predu_u_sets_inter(s(t_fun(TV_u_27a,t_bool),V_t),s(t_fun(TV_u_27a,t_bool),V_s)))).
fof(ah4s_predu_u_sets_CARDu_u_INTERu_u_LESSu_u_EQ, axiom, ![TV_u_27a]: ![V_s]: (p(s(t_bool,h4s_predu_u_sets_finite(s(t_fun(TV_u_27a,t_bool),V_s)))) => ![V_t]: p(s(t_bool,h4s_arithmetics_u_3cu_3d(s(t_h4s_nums_num,h4s_predu_u_sets_card(s(t_fun(TV_u_27a,t_bool),h4s_predu_u_sets_inter(s(t_fun(TV_u_27a,t_bool),V_s),s(t_fun(TV_u_27a,t_bool),V_t))))),s(t_h4s_nums_num,h4s_predu_u_sets_card(s(t_fun(TV_u_27a,t_bool),V_s)))))))).
fof(ah4s_predu_u_sets_CARDu_u_DIFF, axiom, ![TV_u_27a]: ![V_t]: (p(s(t_bool,h4s_predu_u_sets_finite(s(t_fun(TV_u_27a,t_bool),V_t)))) => ![V_s]: (p(s(t_bool,h4s_predu_u_sets_finite(s(t_fun(TV_u_27a,t_bool),V_s)))) => s(t_h4s_nums_num,h4s_predu_u_sets_card(s(t_fun(TV_u_27a,t_bool),h4s_predu_u_sets_diff(s(t_fun(TV_u_27a,t_bool),V_s),s(t_fun(TV_u_27a,t_bool),V_t))))) = s(t_h4s_nums_num,h4s_arithmetics_u_2d(s(t_h4s_nums_num,h4s_predu_u_sets_card(s(t_fun(TV_u_27a,t_bool),V_s))),s(t_h4s_nums_num,h4s_predu_u_sets_card(s(t_fun(TV_u_27a,t_bool),h4s_predu_u_sets_inter(s(t_fun(TV_u_27a,t_bool),V_s),s(t_fun(TV_u_27a,t_bool),V_t)))))))))).
fof(ch4s_predu_u_sets_LESSu_u_CARDu_u_DIFF, conjecture, ![TV_u_27a]: ![V_t]: (p(s(t_bool,h4s_predu_u_sets_finite(s(t_fun(TV_u_27a,t_bool),V_t)))) => ![V_s]: (p(s(t_bool,h4s_predu_u_sets_finite(s(t_fun(TV_u_27a,t_bool),V_s)))) => (p(s(t_bool,h4s_primu_u_recs_u_3c(s(t_h4s_nums_num,h4s_predu_u_sets_card(s(t_fun(TV_u_27a,t_bool),V_t))),s(t_h4s_nums_num,h4s_predu_u_sets_card(s(t_fun(TV_u_27a,t_bool),V_s)))))) => p(s(t_bool,h4s_primu_u_recs_u_3c(s(t_h4s_nums_num,h4s_nums_0),s(t_h4s_nums_num,h4s_predu_u_sets_card(s(t_fun(TV_u_27a,t_bool),h4s_predu_u_sets_diff(s(t_fun(TV_u_27a,t_bool),V_s),s(t_fun(TV_u_27a,t_bool),V_t)))))))))))).
