:: ZF_REFLE semantic presentation begin theorem :: ZF_REFLE:1 (Bool "for" (Set (Var "W")) "being" ($#m1_hidden :::"Universe":::) "holds" (Bool (Set (Var "W")) ($#r2_zf_model :::"|="::: ) (Set ($#k7_zf_model :::"the_axiom_of_pairs"::: ) ))) ; theorem :: ZF_REFLE:2 (Bool "for" (Set (Var "W")) "being" ($#m1_hidden :::"Universe":::) "holds" (Bool (Set (Var "W")) ($#r2_zf_model :::"|="::: ) (Set ($#k8_zf_model :::"the_axiom_of_unions"::: ) ))) ; theorem :: ZF_REFLE:3 (Bool "for" (Set (Var "W")) "being" ($#m1_hidden :::"Universe":::) "st" (Bool (Bool (Set ($#k4_ordinal1 :::"omega"::: ) ) ($#r2_hidden :::"in"::: ) (Set (Var "W")))) "holds" (Bool (Set (Var "W")) ($#r2_zf_model :::"|="::: ) (Set ($#k9_zf_model :::"the_axiom_of_infinity"::: ) ))) ; theorem :: ZF_REFLE:4 (Bool "for" (Set (Var "W")) "being" ($#m1_hidden :::"Universe":::) "holds" (Bool (Set (Var "W")) ($#r2_zf_model :::"|="::: ) (Set ($#k10_zf_model :::"the_axiom_of_power_sets"::: ) ))) ; theorem :: ZF_REFLE:5 (Bool "for" (Set (Var "W")) "being" ($#m1_hidden :::"Universe":::) (Bool "for" (Set (Var "H")) "being" ($#m2_finseq_1 :::"ZF-formula":::) "st" (Bool (Bool (Set ($#k1_enumset1 :::"{"::: ) (Set "(" ($#k2_zf_lang :::"x."::: ) (Set ($#k6_numbers :::"0"::: ) ) ")" ) "," (Set "(" ($#k2_zf_lang :::"x."::: ) (Num 1) ")" ) "," (Set "(" ($#k2_zf_lang :::"x."::: ) (Num 2) ")" ) ($#k1_enumset1 :::"}"::: ) ) ($#r1_xboole_0 :::"misses"::: ) (Set ($#k2_zf_model :::"Free"::: ) (Set (Var "H"))))) "holds" (Bool (Set (Var "W")) ($#r2_zf_model :::"|="::: ) (Set ($#k11_zf_model :::"the_axiom_of_substitution_for"::: ) (Set (Var "H")))))) ; theorem :: ZF_REFLE:6 (Bool "for" (Set (Var "W")) "being" ($#m1_hidden :::"Universe":::) "st" (Bool (Bool (Set ($#k4_ordinal1 :::"omega"::: ) ) ($#r2_hidden :::"in"::: ) (Set (Var "W")))) "holds" (Bool (Set (Var "W")) "is" ($#v1_zf_model :::"being_a_model_of_ZF"::: ) )) ; scheme :: ZF_REFLE:sch 1 ALFA9Universe{ F1() -> ($#m1_hidden :::"Universe":::), F2() -> ($#~v1_xboole_0 "non" ($#v1_xboole_0 :::"empty"::: ) ) ($#m1_hidden :::"set"::: ) , P1[ ($#m1_hidden :::"set"::: ) "," ($#m1_hidden :::"set"::: ) ] } : (Bool "ex" (Set (Var "F")) "being" ($#m1_hidden :::"Function":::) "st" (Bool "(" (Bool (Set ($#k9_xtuple_0 :::"dom"::: ) (Set (Var "F"))) ($#r1_hidden :::"="::: ) (Set F2 "(" ")" )) & (Bool "(" "for" (Set (Var "d")) "being" ($#m1_subset_1 :::"Element"::: ) "of" (Set F2 "(" ")" ) (Bool "ex" (Set (Var "a")) "being" ($#m1_subset_1 :::"Ordinal":::) "of" (Set F1 "(" ")" ) "st" (Bool "(" (Bool (Set (Var "a")) ($#r1_hidden :::"="::: ) (Set (Set (Var "F")) ($#k1_funct_1 :::"."::: ) (Set (Var "d")))) & (Bool P1[(Set (Var "d")) "," (Set (Var "a"))]) & (Bool "(" "for" (Set (Var "b")) "being" ($#m1_subset_1 :::"Ordinal":::) "of" (Set F1 "(" ")" ) "st" (Bool (Bool P1[(Set (Var "d")) "," (Set (Var "b"))])) "holds" (Bool (Set (Var "a")) ($#r1_ordinal1 :::"c="::: ) (Set (Var "b"))) ")" ) ")" )) ")" ) ")" )) provided (Bool "for" (Set (Var "d")) "being" ($#m1_subset_1 :::"Element"::: ) "of" (Set F2 "(" ")" ) (Bool "ex" (Set (Var "a")) "being" ($#m1_subset_1 :::"Ordinal":::) "of" (Set F1 "(" ")" ) "st" (Bool P1[(Set (Var "d")) "," (Set (Var "a"))]))) proof end; theorem :: ZF_REFLE:7 (Bool "for" (Set (Var "W")) "being" ($#m1_hidden :::"Universe":::) (Bool "for" (Set (Var "x")) "being" ($#m1_hidden :::"set"::: ) "holds" (Bool "(" (Bool (Set (Var "x")) "is" ($#m1_subset_1 :::"Ordinal":::) "of" (Set (Var "W"))) "iff" (Bool (Set (Var "x")) ($#r2_hidden :::"in"::: ) (Set ($#k2_ordinal1 :::"On"::: ) (Set (Var "W")))) ")" ))) ; scheme :: ZF_REFLE:sch 2 OrdSeqOfUnivEx{ F1() -> ($#m1_hidden :::"Universe":::), P1[ ($#m1_hidden :::"set"::: ) "," ($#m1_hidden :::"set"::: ) ] } : (Bool "ex" (Set (Var "phi")) "being" ($#m1_subset_1 :::"Ordinal-Sequence":::) "of" (Set F1 "(" ")" ) "st" (Bool "for" (Set (Var "a")) "being" ($#m1_subset_1 :::"Ordinal":::) "of" (Set F1 "(" ")" ) "holds" (Bool P1[(Set (Var "a")) "," (Set (Set (Var "phi")) ($#k4_ordinal4 :::"."::: ) (Set (Var "a")))]))) provided (Bool "for" (Set (Var "a")) "being" ($#m1_subset_1 :::"Ordinal":::) "of" (Set F1 "(" ")" ) (Bool "ex" (Set (Var "b")) "being" ($#m1_subset_1 :::"Ordinal":::) "of" (Set F1 "(" ")" ) "st" (Bool P1[(Set (Var "a")) "," (Set (Var "b"))]))) proof end; scheme :: ZF_REFLE:sch 3 UOSExist{ F1() -> ($#m1_hidden :::"Universe":::), F2() -> ($#m1_subset_1 :::"Ordinal":::) "of" (Set F1 "(" ")" ), F3( ($#m1_hidden :::"Ordinal":::) "," ($#m1_hidden :::"Ordinal":::)) -> ($#m1_subset_1 :::"Ordinal":::) "of" (Set F1 "(" ")" ), F4( ($#m1_hidden :::"Ordinal":::) "," ($#m1_hidden :::"T-Sequence":::)) -> ($#m1_subset_1 :::"Ordinal":::) "of" (Set F1 "(" ")" ) } : (Bool "ex" (Set (Var "phi")) "being" ($#m1_subset_1 :::"Ordinal-Sequence":::) "of" (Set F1 "(" ")" ) "st" (Bool "(" (Bool (Set (Set (Var "phi")) ($#k4_ordinal4 :::"."::: ) (Set "(" ($#k2_ordinal4 :::"0-element_of"::: ) (Set F1 "(" ")" ) ")" )) ($#r1_hidden :::"="::: ) (Set F2 "(" ")" )) & (Bool "(" "for" (Set (Var "a")) "being" ($#m1_subset_1 :::"Ordinal":::) "of" (Set F1 "(" ")" ) "holds" (Bool (Set (Set (Var "phi")) ($#k4_ordinal4 :::"."::: ) (Set "(" ($#k6_ordinal4 :::"succ"::: ) (Set (Var "a")) ")" )) ($#r1_hidden :::"="::: ) (Set F3 "(" (Set (Var "a")) "," (Set "(" (Set (Var "phi")) ($#k4_ordinal4 :::"."::: ) (Set (Var "a")) ")" ) ")" )) ")" ) & (Bool "(" "for" (Set (Var "a")) "being" ($#m1_subset_1 :::"Ordinal":::) "of" (Set F1 "(" ")" ) "st" (Bool (Bool (Set (Var "a")) ($#r1_hidden :::"<>"::: ) (Set ($#k2_ordinal4 :::"0-element_of"::: ) (Set F1 "(" ")" ))) & (Bool (Set (Var "a")) "is" ($#v4_ordinal1 :::"limit_ordinal"::: ) )) "holds" (Bool (Set (Set (Var "phi")) ($#k4_ordinal4 :::"."::: ) (Set (Var "a"))) ($#r1_hidden :::"="::: ) (Set F4 "(" (Set (Var "a")) "," (Set "(" (Set (Var "phi")) ($#k5_relset_1 :::"|"::: ) (Set (Var "a")) ")" ) ")" )) ")" ) ")" )) proof end; scheme :: ZF_REFLE:sch 4 UniverseInd{ F1() -> ($#m1_hidden :::"Universe":::), P1[ ($#m1_hidden :::"Ordinal":::)] } : (Bool "for" (Set (Var "a")) "being" ($#m1_subset_1 :::"Ordinal":::) "of" (Set F1 "(" ")" ) "holds" (Bool P1[(Set (Var "a"))])) provided (Bool P1[(Set ($#k2_ordinal4 :::"0-element_of"::: ) (Set F1 "(" ")" ))]) and (Bool "for" (Set (Var "a")) "being" ($#m1_subset_1 :::"Ordinal":::) "of" (Set F1 "(" ")" ) "st" (Bool (Bool P1[(Set (Var "a"))])) "holds" (Bool P1[(Set ($#k6_ordinal4 :::"succ"::: ) (Set (Var "a")))])) and (Bool "for" (Set (Var "a")) "being" ($#m1_subset_1 :::"Ordinal":::) "of" (Set F1 "(" ")" ) "st" (Bool (Bool (Set (Var "a")) ($#r1_hidden :::"<>"::: ) (Set ($#k2_ordinal4 :::"0-element_of"::: ) (Set F1 "(" ")" ))) & (Bool (Set (Var "a")) "is" ($#v4_ordinal1 :::"limit_ordinal"::: ) ) & (Bool "(" "for" (Set (Var "b")) "being" ($#m1_subset_1 :::"Ordinal":::) "of" (Set F1 "(" ")" ) "st" (Bool (Bool (Set (Var "b")) ($#r2_hidden :::"in"::: ) (Set (Var "a")))) "holds" (Bool P1[(Set (Var "b"))]) ")" )) "holds" (Bool P1[(Set (Var "a"))])) proof end; definitionlet "f" be ($#m1_hidden :::"Function":::); let "W" be ($#m1_hidden :::"Universe":::); let "a" be ($#m1_subset_1 :::"Ordinal":::) "of" (Set (Const "W")); func :::"union"::: "(" "f" "," "a" ")" -> ($#m1_hidden :::"set"::: ) equals :: ZF_REFLE:def 1 (Set ($#k3_card_3 :::"Union"::: ) (Set "(" "W" ($#k6_relat_1 :::"|`"::: ) (Set "(" "f" ($#k5_relat_1 :::"|"::: ) (Set "(" ($#k4_classes1 :::"Rank"::: ) "a" ")" ) ")" ) ")" )); end; :: deftheorem defines :::"union"::: ZF_REFLE:def 1 : (Bool "for" (Set (Var "f")) "being" ($#m1_hidden :::"Function":::) (Bool "for" (Set (Var "W")) "being" ($#m1_hidden :::"Universe":::) (Bool "for" (Set (Var "a")) "being" ($#m1_subset_1 :::"Ordinal":::) "of" (Set (Var "W")) "holds" (Bool (Set ($#k1_zf_refle :::"union"::: ) "(" (Set (Var "f")) "," (Set (Var "a")) ")" ) ($#r1_hidden :::"="::: ) (Set ($#k3_card_3 :::"Union"::: ) (Set "(" (Set (Var "W")) ($#k6_relat_1 :::"|`"::: ) (Set "(" (Set (Var "f")) ($#k5_relat_1 :::"|"::: ) (Set "(" ($#k4_classes1 :::"Rank"::: ) (Set (Var "a")) ")" ) ")" ) ")" )))))); theorem :: ZF_REFLE:8 (Bool "for" (Set (Var "L")) "being" ($#m1_hidden :::"T-Sequence":::) (Bool "for" (Set (Var "A")) "being" ($#m1_hidden :::"Ordinal":::) "holds" (Bool (Set (Set (Var "L")) ($#k5_relat_1 :::"|"::: ) (Set "(" ($#k4_classes1 :::"Rank"::: ) (Set (Var "A")) ")" )) "is" ($#m1_hidden :::"T-Sequence":::)))) ; theorem :: ZF_REFLE:9 (Bool "for" (Set (Var "L")) "being" ($#m1_hidden :::"Ordinal-Sequence":::) (Bool "for" (Set (Var "A")) "being" ($#m1_hidden :::"Ordinal":::) "holds" (Bool (Set (Set (Var "L")) ($#k5_relat_1 :::"|"::: ) (Set "(" ($#k4_classes1 :::"Rank"::: ) (Set (Var "A")) ")" )) "is" ($#m1_hidden :::"Ordinal-Sequence":::)))) ; theorem :: ZF_REFLE:10 (Bool "for" (Set (Var "psi")) "being" ($#m1_hidden :::"Ordinal-Sequence":::) "holds" (Bool (Set ($#k3_card_3 :::"Union"::: ) (Set (Var "psi"))) "is" ($#m1_hidden :::"Ordinal":::))) ; theorem :: ZF_REFLE:11 (Bool "for" (Set (Var "X")) "being" ($#m1_hidden :::"set"::: ) (Bool "for" (Set (Var "psi")) "being" ($#m1_hidden :::"Ordinal-Sequence":::) "holds" (Bool (Set ($#k3_card_3 :::"Union"::: ) (Set "(" (Set (Var "X")) ($#k6_relat_1 :::"|`"::: ) (Set (Var "psi")) ")" )) "is" ($#m1_hidden :::"Ordinal":::)))) ; theorem :: ZF_REFLE:12 (Bool "for" (Set (Var "A")) "being" ($#m1_hidden :::"Ordinal":::) "holds" (Bool (Set ($#k2_ordinal1 :::"On"::: ) (Set "(" ($#k4_classes1 :::"Rank"::: ) (Set (Var "A")) ")" )) ($#r1_hidden :::"="::: ) (Set (Var "A")))) ; theorem :: ZF_REFLE:13 (Bool "for" (Set (Var "A")) "being" ($#m1_hidden :::"Ordinal":::) (Bool "for" (Set (Var "psi")) "being" ($#m1_hidden :::"Ordinal-Sequence":::) "holds" (Bool (Set (Set (Var "psi")) ($#k5_relat_1 :::"|"::: ) (Set "(" ($#k4_classes1 :::"Rank"::: ) (Set (Var "A")) ")" )) ($#r1_hidden :::"="::: ) (Set (Set (Var "psi")) ($#k5_relat_1 :::"|"::: ) (Set (Var "A")))))) ; definitionlet "phi" be ($#m1_hidden :::"Ordinal-Sequence":::); let "W" be ($#m1_hidden :::"Universe":::); let "a" be ($#m1_subset_1 :::"Ordinal":::) "of" (Set (Const "W")); :: original: :::"union"::: redefine func :::"union"::: "(" "phi" "," "a" ")" -> ($#m1_subset_1 :::"Ordinal":::) "of" "W"; end; theorem :: ZF_REFLE:14 (Bool "for" (Set (Var "W")) "being" ($#m1_hidden :::"Universe":::) (Bool "for" (Set (Var "a")) "being" ($#m1_subset_1 :::"Ordinal":::) "of" (Set (Var "W")) (Bool "for" (Set (Var "phi")) "being" ($#m1_subset_1 :::"Ordinal-Sequence":::) "of" (Set (Var "W")) "holds" (Bool "(" (Bool (Set ($#k2_zf_refle :::"union"::: ) "(" (Set (Var "phi")) "," (Set (Var "a")) ")" ) ($#r1_hidden :::"="::: ) (Set ($#k3_card_3 :::"Union"::: ) (Set "(" (Set (Var "phi")) ($#k5_relset_1 :::"|"::: ) (Set (Var "a")) ")" ))) & (Bool (Set ($#k2_zf_refle :::"union"::: ) "(" (Set "(" (Set (Var "phi")) ($#k5_relset_1 :::"|"::: ) (Set (Var "a")) ")" ) "," (Set (Var "a")) ")" ) ($#r1_hidden :::"="::: ) (Set ($#k3_card_3 :::"Union"::: ) (Set "(" (Set (Var "phi")) ($#k5_relset_1 :::"|"::: ) (Set (Var "a")) ")" ))) ")" )))) ; definitionlet "W" be ($#m1_hidden :::"Universe":::); let "a", "b" be ($#m1_subset_1 :::"Ordinal":::) "of" (Set (Const "W")); :: original: :::"\/"::: redefine func "a" :::"\/"::: "b" -> ($#m1_subset_1 :::"Ordinal":::) "of" "W"; end; registrationlet "W" be ($#m1_hidden :::"Universe":::); cluster ($#~v1_xboole_0 "non" ($#v1_xboole_0 :::"empty"::: ) ) for ($#m1_subset_1 :::"Element"::: ) "of" "W"; end; definitionlet "W" be ($#m1_hidden :::"Universe":::); mode Subclass of "W" is ($#~v1_xboole_0 "non" ($#v1_xboole_0 :::"empty"::: ) ) ($#m1_subset_1 :::"Subset":::) "of" "W"; end; definitionlet "W" be ($#m1_hidden :::"Universe":::); let "IT" be ($#m1_hidden :::"T-Sequence":::) "of" (Set (Const "W")); attr "IT" is :::"DOMAIN-yielding"::: means :: ZF_REFLE:def 2 (Bool (Set ($#k9_xtuple_0 :::"dom"::: ) "IT") ($#r1_hidden :::"="::: ) (Set ($#k2_ordinal1 :::"On"::: ) "W")); end; :: deftheorem defines :::"DOMAIN-yielding"::: ZF_REFLE:def 2 : (Bool "for" (Set (Var "W")) "being" ($#m1_hidden :::"Universe":::) (Bool "for" (Set (Var "IT")) "being" ($#m1_hidden :::"T-Sequence":::) "of" (Set (Var "W")) "holds" (Bool "(" (Bool (Set (Var "IT")) "is" ($#v1_zf_refle :::"DOMAIN-yielding"::: ) ) "iff" (Bool (Set ($#k9_xtuple_0 :::"dom"::: ) (Set (Var "IT"))) ($#r1_hidden :::"="::: ) (Set ($#k2_ordinal1 :::"On"::: ) (Set (Var "W")))) ")" ))); registrationlet "W" be ($#m1_hidden :::"Universe":::); cluster ($#v1_relat_1 :::"Relation-like"::: ) ($#v2_relat_1 :::"non-empty"::: ) "W" ($#v5_relat_1 :::"-valued"::: ) ($#v5_ordinal1 :::"T-Sequence-like"::: ) ($#v1_funct_1 :::"Function-like"::: ) ($#v1_zf_refle :::"DOMAIN-yielding"::: ) for ($#m1_hidden :::"set"::: ) ; end; definitionlet "W" be ($#m1_hidden :::"Universe":::); mode DOMAIN-Sequence of "W" is ($#v2_relat_1 :::"non-empty"::: ) ($#v1_zf_refle :::"DOMAIN-yielding"::: ) ($#m1_hidden :::"T-Sequence":::) "of" "W"; end; definitionlet "W" be ($#m1_hidden :::"Universe":::); let "L" be ($#m1_hidden :::"DOMAIN-Sequence":::) "of" (Set (Const "W")); :: original: :::"Union"::: redefine func :::"Union"::: "L" -> ($#m1_subset_1 :::"Subclass":::) "of" "W"; let "a" be ($#m1_subset_1 :::"Ordinal":::) "of" (Set (Const "W")); :: original: :::"."::: redefine func "L" :::"."::: "a" -> ($#~v1_xboole_0 "non" ($#v1_xboole_0 :::"empty"::: ) ) ($#m1_subset_1 :::"Element"::: ) "of" "W"; end; theorem :: ZF_REFLE:15 (Bool "for" (Set (Var "W")) "being" ($#m1_hidden :::"Universe":::) (Bool "for" (Set (Var "a")) "being" ($#m1_subset_1 :::"Ordinal":::) "of" (Set (Var "W")) (Bool "for" (Set (Var "L")) "being" ($#m1_hidden :::"DOMAIN-Sequence":::) "of" (Set (Var "W")) "holds" (Bool (Set (Var "a")) ($#r2_hidden :::"in"::: ) (Set ($#k9_xtuple_0 :::"dom"::: ) (Set (Var "L"))))))) ; theorem :: ZF_REFLE:16 (Bool "for" (Set (Var "W")) "being" ($#m1_hidden :::"Universe":::) (Bool "for" (Set (Var "a")) "being" ($#m1_subset_1 :::"Ordinal":::) "of" (Set (Var "W")) (Bool "for" (Set (Var "L")) "being" ($#m1_hidden :::"DOMAIN-Sequence":::) "of" (Set (Var "W")) "holds" (Bool (Set (Set (Var "L")) ($#k5_zf_refle :::"."::: ) (Set (Var "a"))) ($#r1_tarski :::"c="::: ) (Set ($#k4_zf_refle :::"Union"::: ) (Set (Var "L"))))))) ; theorem :: ZF_REFLE:17 (Bool (Set ($#k5_numbers :::"NAT"::: ) ) "," (Set ($#k1_zf_lang :::"VAR"::: ) ) ($#r2_tarski :::"are_equipotent"::: ) ) ; theorem :: ZF_REFLE:18 (Bool "for" (Set (Var "X")) "being" ($#m1_hidden :::"set"::: ) "holds" (Bool (Set ($#k3_ordinal2 :::"sup"::: ) (Set (Var "X"))) ($#r1_tarski :::"c="::: ) (Set ($#k1_ordinal1 :::"succ"::: ) (Set "(" ($#k3_tarski :::"union"::: ) (Set "(" ($#k2_ordinal1 :::"On"::: ) (Set (Var "X")) ")" ) ")" )))) ; theorem :: ZF_REFLE:19 (Bool "for" (Set (Var "W")) "being" ($#m1_hidden :::"Universe":::) (Bool "for" (Set (Var "X")) "being" ($#m1_hidden :::"set"::: ) "st" (Bool (Bool (Set (Var "X")) ($#r2_hidden :::"in"::: ) (Set (Var "W")))) "holds" (Bool (Set ($#k3_ordinal2 :::"sup"::: ) (Set (Var "X"))) ($#r2_hidden :::"in"::: ) (Set (Var "W"))))) ; theorem :: ZF_REFLE:20 (Bool "for" (Set (Var "W")) "being" ($#m1_hidden :::"Universe":::) (Bool "for" (Set (Var "L")) "being" ($#m1_hidden :::"DOMAIN-Sequence":::) "of" (Set (Var "W")) "st" (Bool (Bool (Set ($#k4_ordinal1 :::"omega"::: ) ) ($#r2_hidden :::"in"::: ) (Set (Var "W"))) & (Bool "(" "for" (Set (Var "a")) "," (Set (Var "b")) "being" ($#m1_subset_1 :::"Ordinal":::) "of" (Set (Var "W")) "st" (Bool (Bool (Set (Var "a")) ($#r2_hidden :::"in"::: ) (Set (Var "b")))) "holds" (Bool (Set (Set (Var "L")) ($#k5_zf_refle :::"."::: ) (Set (Var "a"))) ($#r1_tarski :::"c="::: ) (Set (Set (Var "L")) ($#k5_zf_refle :::"."::: ) (Set (Var "b")))) ")" ) & (Bool "(" "for" (Set (Var "a")) "being" ($#m1_subset_1 :::"Ordinal":::) "of" (Set (Var "W")) "st" (Bool (Bool (Set (Var "a")) ($#r1_hidden :::"<>"::: ) (Set ($#k1_xboole_0 :::"{}"::: ) )) & (Bool (Set (Var "a")) "is" ($#v4_ordinal1 :::"limit_ordinal"::: ) )) "holds" (Bool (Set (Set (Var "L")) ($#k5_zf_refle :::"."::: ) (Set (Var "a"))) ($#r1_hidden :::"="::: ) (Set ($#k3_card_3 :::"Union"::: ) (Set "(" (Set (Var "L")) ($#k5_relat_1 :::"|"::: ) (Set (Var "a")) ")" ))) ")" )) "holds" (Bool "for" (Set (Var "H")) "being" ($#m2_finseq_1 :::"ZF-formula":::) (Bool "ex" (Set (Var "phi")) "being" ($#m1_subset_1 :::"Ordinal-Sequence":::) "of" (Set (Var "W")) "st" (Bool "(" (Bool (Set (Var "phi")) "is" ($#v2_ordinal2 :::"increasing"::: ) ) & (Bool (Set (Var "phi")) "is" ($#v3_ordinal2 :::"continuous"::: ) ) & (Bool "(" "for" (Set (Var "a")) "being" ($#m1_subset_1 :::"Ordinal":::) "of" (Set (Var "W")) "st" (Bool (Bool (Set (Set (Var "phi")) ($#k4_ordinal4 :::"."::: ) (Set (Var "a"))) ($#r1_hidden :::"="::: ) (Set (Var "a"))) & (Bool (Set ($#k1_xboole_0 :::"{}"::: ) ) ($#r1_hidden :::"<>"::: ) (Set (Var "a")))) "holds" (Bool "for" (Set (Var "f")) "being" ($#m1_subset_1 :::"Function":::) "of" (Set ($#k1_zf_lang :::"VAR"::: ) ) "," (Set "(" (Set (Var "L")) ($#k5_zf_refle :::"."::: ) (Set (Var "a")) ")" ) "holds" (Bool "(" (Bool (Set ($#k4_zf_refle :::"Union"::: ) (Set (Var "L"))) "," (Set (Set "(" ($#k4_zf_refle :::"Union"::: ) (Set (Var "L")) ")" ) ($#k1_zf_lang1 :::"!"::: ) (Set (Var "f"))) ($#r1_zf_model :::"|="::: ) (Set (Var "H"))) "iff" (Bool (Set (Set (Var "L")) ($#k5_zf_refle :::"."::: ) (Set (Var "a"))) "," (Set (Var "f")) ($#r1_zf_model :::"|="::: ) (Set (Var "H"))) ")" )) ")" ) ")" ))))) ; begin theorem :: ZF_REFLE:21 (Bool "for" (Set (Var "M")) "being" ($#~v4_card_3 "non" ($#v4_card_3 :::"countable"::: ) ) ($#m1_hidden :::"Aleph":::) "st" (Bool (Bool (Set (Var "M")) "is" ($#v6_card_fil :::"strongly_inaccessible"::: ) )) "holds" (Bool (Set ($#k4_classes1 :::"Rank"::: ) (Set (Var "M"))) "is" ($#v1_zf_model :::"being_a_model_of_ZF"::: ) )) ;