%   ORIGINAL: 'h4/thm/bool/PEIRCE_'
% 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
% Goal: !Q P. ((P ==> Q) ==> P) ==> P
%   PROCESSED
% Assm ['HL_TRUTH']: T
% Assm ['HL_FALSITY']: ~F
% Assm ['HL_BOOL_CASES']: !t. (t <=> T) \/ (t <=> F)
% Assm ['HL_EXT']: !f g. (!x. happ f x = happ g x) ==> f = g
% Goal: !Q P. ((P ==> Q) ==> P) ==> P
fof('HL_TRUTH', axiom, p(s(bool,'T'))).
fof('HL_FALSITY', axiom, ~ (p(s(bool,'F')))).
fof('HL_BOOL_CASES', axiom, ![T]: (s(bool,T) = s(bool,'T') | s(bool,T) = s(bool,'F'))).
fof('HL_EXT', axiom, ![V_3f35829,V_3f35825]: ![F, G]: (![X]: s(V_3f35825,happ(s(fun(V_3f35829,V_3f35825),F),s(V_3f35829,X))) = s(V_3f35825,happ(s(fun(V_3f35829,V_3f35825),G),s(V_3f35829,X))) => s(fun(V_3f35829,V_3f35825),F) = s(fun(V_3f35829,V_3f35825),G))).
fof('h4/thm/bool/PEIRCE_', conjecture, ![Q, P]: (((p(s(bool,P)) => p(s(bool,Q))) => p(s(bool,P))) => p(s(bool,P)))).
