(infinite_pigeonhole
(Union_inverse_image 0
(Union_inverse_image-1 nil 3314537897
("" (skolem!)
(("" (decompose-equality)
(("" (expand * "fullset" "IUnion" "Union" )
(("" (inst + "f!1(x!1)" )
((""
(expand * "inverse_image" "inverse_image" "member"
"singleton" )
nil nil ))
nil ))
nil ))
nil ))
nil )
((bool nonempty-type-eq-decl nil booleans nil )
(set type-eq-decl nil sets nil ) (fullset const-decl "set" sets nil )
(R formal-type-decl nil infinite_pigeonhole nil )
(IUnion const-decl "set[T]" indexed_sets nil )
(inverse_image const-decl "set[D]" function_image nil )
(singleton? const-decl "bool" sets nil )
(singleton const-decl "(singleton?)" sets nil )
(boolean nonempty-type-decl nil booleans nil )
(D formal-type-decl nil infinite_pigeonhole nil )
(member const-decl "bool" sets nil )
(inverse_image const-decl "set[D]" function_image nil ))
shostak))
(infinite_pigeonhole 0
(infinite_pigeonhole-1 nil 3314538195
("" (skolem!)
(("" (use "Union_inverse_image" )
(("" (rewrite "IUnion_Union" )
(("" (use "Union_finite[D]" )
(("" (replace -2 :dir rl :hide? t)
(("" (rewrite "finite_full" :dir rl)
(("" (rewrite "domain_infiniteness" )
(("" (prop)
(("1" (hide-all-but 1)
(("1" (expand "image" )
(("1" (rewrite "finite_image" )
(("1" (rewrite "finite_full" :dir rl)
(("1" (forward-chain "range_finiteness" ) nil
nil ))
nil ))
nil ))
nil ))
nil )
("2" (expand "every" )
(("2" (skolem-typepred)
(("2" (expand * "image" "image" )
(("2" (expand "inverse_image" -)
(("2" (skolem!)
(("2" (replace -1 :hide? t)
(("2" (inst?) nil nil )) nil ))
nil ))
nil ))
nil ))
nil ))
nil ))
nil ))
nil ))
nil ))
nil ))
nil ))
nil ))
nil ))
nil )
((Union_inverse_image formula-decl nil infinite_pigeonhole nil )
(R formal-type-decl nil infinite_pigeonhole nil )
(D formal-type-decl nil infinite_pigeonhole nil )
(Union_finite formula-decl nil finite_sets_of_sets nil )
(fullset const-decl "set" sets nil )
(image const-decl "set[R]" function_image nil )
(setofsets type-eq-decl nil sets nil )
(setof type-eq-decl nil defined_types nil )
(finite_full formula-decl nil finite_sets nil )
(range_finiteness formula-decl nil infinite_pigeonhole nil )
(finite_image judgement-tcc nil function_image_aux nil )
(is_finite const-decl "bool" finite_sets nil )
(finite_set type-eq-decl nil finite_sets nil )
(NOT const-decl "[bool -> bool]" booleans nil )
(image const-decl "set[R]" function_image nil )
(every const-decl "bool" sets nil )
(domain_infiniteness formula-decl nil infinite_pigeonhole nil )
(Union_surjective name-judgement
"(surjective?[setofsets[T], set[T]])" sets_lemmas nil )
(singleton const-decl "(singleton?)" sets nil )
(singleton? const-decl "bool" sets nil )
(inverse_image const-decl "set[D]" function_image nil )
(set type-eq-decl nil sets nil )
(bool nonempty-type-eq-decl nil booleans nil )
(boolean nonempty-type-decl nil booleans nil )
(IUnion_Union formula-decl nil indexed_sets nil ))
shostak)))
quality 100%
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