1086 qed "lemma_SReal_ub"; |
1086 qed "lemma_SReal_ub"; |
1087 |
1087 |
1088 Goal "(x::hypreal): Reals ==> isLub Reals {s. s: Reals & s < x} x"; |
1088 Goal "(x::hypreal): Reals ==> isLub Reals {s. s: Reals & s < x} x"; |
1089 by (auto_tac (claset() addSIs [isLubI2,lemma_SReal_ub,setgeI], simpset())); |
1089 by (auto_tac (claset() addSIs [isLubI2,lemma_SReal_ub,setgeI], simpset())); |
1090 by (ftac isUbD2a 1); |
1090 by (ftac isUbD2a 1); |
1091 by (res_inst_tac [("x","x"),("y","y")] hypreal_linear_less2 1); |
1091 by (res_inst_tac [("x","x"),("y","y")] linorder_cases 1); |
1092 by (auto_tac (claset() addSIs [order_less_imp_le], simpset())); |
1092 by (auto_tac (claset() addSIs [order_less_imp_le], simpset())); |
1093 by (EVERY1[dtac SReal_dense, assume_tac, assume_tac, Step_tac]); |
1093 by (EVERY1[dtac SReal_dense, assume_tac, assume_tac, Step_tac]); |
1094 by (dres_inst_tac [("y","r")] isUbD 1); |
1094 by (dres_inst_tac [("y","r")] isUbD 1); |
1095 by (auto_tac (claset() addDs [order_less_le_trans], simpset())); |
1095 by (auto_tac (claset() addDs [order_less_le_trans], simpset())); |
1096 qed "lemma_SReal_lub"; |
1096 qed "lemma_SReal_lub"; |
1978 \ <= {n. abs (X n) < (u::real)}"; |
1978 \ <= {n. abs (X n) < (u::real)}"; |
1979 by Auto_tac; |
1979 by Auto_tac; |
1980 qed "lemma_Int_HI"; |
1980 qed "lemma_Int_HI"; |
1981 |
1981 |
1982 Goal "{n. u < abs (X n)} Int {n. abs (X n) < (u::real)} = {}"; |
1982 Goal "{n. u < abs (X n)} Int {n. abs (X n) < (u::real)} = {}"; |
1983 by (auto_tac (claset() addIs [real_less_asym], simpset())); |
1983 by (auto_tac (claset() addIs [order_less_asym], simpset())); |
1984 qed "lemma_Int_HIa"; |
1984 qed "lemma_Int_HIa"; |
1985 |
1985 |
1986 Goal "EX X: Rep_hypreal x. ALL u. \ |
1986 Goal "EX X: Rep_hypreal x. ALL u. \ |
1987 \ {n. u < abs (X n)}: FreeUltrafilterNat\ |
1987 \ {n. u < abs (X n)}: FreeUltrafilterNat\ |
1988 \ ==> x : HInfinite"; |
1988 \ ==> x : HInfinite"; |