%   ORIGINAL: h4/pred__set/countable__EMPTY
% 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/EXISTS__SIMP: !t. (?x. t) <=> t
% Assm: h4/bool/EQ__CLAUSES_c1: !t. (t <=> T) <=> t
% Assm: h4/pred__set/INJ__EMPTY_c0: !s f. h4/pred__set/INJ f h4/pred__set/EMPTY s
% Assm: h4/pred__set/countable__def: !s. h4/pred__set/countable s <=> (?f. h4/pred__set/INJ f s h4/pred__set/UNIV)
% Goal: h4/pred__set/countable h4/pred__set/EMPTY
%   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_EXISTSu_u_SIMP]: !t. (?x. t) <=> t
% Assm [h4s_bools_EQu_u_CLAUSESu_c1]: !t. (t <=> T) <=> t
% Assm [h4s_predu_u_sets_INJu_u_EMPTYu_c0]: !s f. h4/pred__set/INJ f h4/pred__set/EMPTY s
% Assm [h4s_predu_u_sets_countableu_u_def]: !s. h4/pred__set/countable s <=> (?f. h4/pred__set/INJ f s h4/pred__set/UNIV)
% Goal: h4/pred__set/countable h4/pred__set/EMPTY
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_Q156804,TV_Q156800]: ![V_f, V_g]: (![V_x]: s(TV_Q156800,happ(s(t_fun(TV_Q156804,TV_Q156800),V_f),s(TV_Q156804,V_x))) = s(TV_Q156800,happ(s(t_fun(TV_Q156804,TV_Q156800),V_g),s(TV_Q156804,V_x))) => s(t_fun(TV_Q156804,TV_Q156800),V_f) = s(t_fun(TV_Q156804,TV_Q156800),V_g))).
fof(ah4s_bools_TRUTH, axiom, p(s(t_bool,t))).
fof(ah4s_bools_EXISTSu_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_EQu_u_CLAUSESu_c1, axiom, ![V_t]: (s(t_bool,V_t) = s(t_bool,t) <=> p(s(t_bool,V_t)))).
fof(ah4s_predu_u_sets_INJu_u_EMPTYu_c0, axiom, ![TV_u_27a,TV_u_27b]: ![V_s, V_f]: p(s(t_bool,h4s_predu_u_sets_inj(s(t_fun(TV_u_27a,TV_u_27b),V_f),s(t_fun(TV_u_27a,t_bool),h4s_predu_u_sets_empty),s(t_fun(TV_u_27b,t_bool),V_s))))).
fof(ah4s_predu_u_sets_countableu_u_def, axiom, ![TV_u_27a]: ![V_s]: (p(s(t_bool,h4s_predu_u_sets_countable(s(t_fun(TV_u_27a,t_bool),V_s)))) <=> ?[V_f]: p(s(t_bool,h4s_predu_u_sets_inj(s(t_fun(TV_u_27a,t_h4s_nums_num),V_f),s(t_fun(TV_u_27a,t_bool),V_s),s(t_fun(t_h4s_nums_num,t_bool),h4s_predu_u_sets_univ)))))).
fof(ch4s_predu_u_sets_countableu_u_EMPTY, conjecture, ![TV_u_27a]: p(s(t_bool,h4s_predu_u_sets_countable(s(t_fun(TV_u_27a,t_bool),h4s_predu_u_sets_empty))))).
