(constant_continuity
(const_continuous_at 0
(const_continuous_at-1 nil 3301542630
("" (expand "continuous_at?" )
(("" (expand "neighbourhood?" )
(("" (expand "interior_point?" )
(("" (skosimp*)
(("" (typepred "U!2" )
(("" (assert )
(("" (inst + "inverse_image(const_fun(a!1), U!2)" )
(("1"
(lemma "inverse_image_subset[T1,T2]"
("Y1" "U!2" "Y2" "U!1" "f" "const_fun[T1,T2](a!1)" ))
(("1" (assert )
(("1" (lemma "topology1" )
(("1" (lemma "open_fullset[T1,S]" )
(("1" (expand "inverse_image" )
(("1" (assert ) nil nil )) nil )
("2" (propax) nil nil ))
nil ))
nil ))
nil ))
nil )
("2" (expand "inverse_image" )
(("2" (expand "const_fun" )
(("2" (expand "member" )
(("2" (replace -3)
(("2" (lemma "open_fullset[T1,S]" )
(("1" (expand "fullset" )
(("1" (propax) nil nil )) nil )
("2" (lemma "topology1" )
(("2" (propax) nil nil )) nil ))
nil ))
nil ))
nil ))
nil ))
nil ))
nil ))
nil ))
nil ))
nil ))
nil ))
nil ))
nil )
((neighbourhood? const-decl "bool" topology nil )
(subset_is_partial_order name-judgement "(partial_order?[set[T]])"
sets_lemmas nil )
(member const-decl "bool" sets nil )
(fullset const-decl "set" sets nil )
(inverse_image_subset formula-decl nil function_image nil )
(open_fullset formula-decl nil topology nil )
(fullset_is_clopen name-judgement "clopen" constant_continuity nil )
(T1 formal-type-decl nil constant_continuity nil )
(S formal-const-decl "topology[T1]" constant_continuity nil )
(inverse_image const-decl "set[D]" function_image nil )
(const_fun const-decl "[S -> T]" const_fun_def "structures/" )
(a!1 skolem-const-decl "T2" constant_continuity nil )
(U!2 skolem-const-decl "open[T2, T]" constant_continuity nil )
(boolean nonempty-type-decl nil booleans nil )
(bool nonempty-type-eq-decl nil booleans nil )
(NOT const-decl "[bool -> bool]" booleans nil )
(T2 formal-type-decl nil constant_continuity nil )
(set type-eq-decl nil sets nil )
(setof type-eq-decl nil defined_types nil )
(setofsets type-eq-decl nil sets nil )
(topology? const-decl "bool" topology_prelim nil )
(topology nonempty-type-eq-decl nil topology_prelim nil )
(T formal-const-decl "topology[T2]" constant_continuity nil )
(open? const-decl "bool" topology nil )
(open nonempty-type-eq-decl nil topology nil )
(interior_point? const-decl "bool" topology nil )
(continuous_at? const-decl "bool" continuity_def nil ))
shostak))
(const_continuous 0
(const_continuous-1 nil 3301542853
("" (expand "continuous?" )
(("" (skosimp*)
(("" (lemma "const_continuous_at" ("a" "a!1" "x" "x!1" ))
(("" (propax) nil nil )) nil ))
nil ))
nil )
((const_continuous_at formula-decl nil constant_continuity nil )
(T2 formal-type-decl nil constant_continuity nil )
(T1 formal-type-decl nil constant_continuity nil )
(continuous? const-decl "bool" continuity_def nil ))
shostak))
(const_is_continuous 0
(const_is_continuous-1 nil 3358747663
("" (skosimp)
(("" (lemma "const_continuous" ("a" "a!1" )) (("" (propax) nil nil ))
nil ))
nil )
((T2 formal-type-decl nil constant_continuity nil )
(const_continuous formula-decl nil constant_continuity nil ))
nil )))
quality 100%
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