| author | wenzelm |
| Wed, 07 Nov 2001 18:18:29 +0100 | |
| changeset 12094 | db9a3ad6e90e |
| parent 11701 | 3d51fbf81c17 |
| child 12486 | 0ed8bdd883e0 |
| permissions | -rw-r--r-- |
| 9015 | 1 |
val prog_Type = prog_Func @ [good_typeof,common_typeof]; |
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fun pgoal s = (case Goal s of _ => by(prolog_tac prog_Type)); |
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val p = ptac prog_Type 1; |
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pgoal "typeof (abs(%n. abs(%m. abs(%p. p and (n eq m))))) ?T"; |
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pgoal "typeof (fix (%x. x)) ?T"; |
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11701
3d51fbf81c17
sane numerals (stage 1): added generic 1, removed 1' and 2 on nat,
wenzelm
parents:
9015
diff
changeset
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pgoal "typeof (fix (%fact. abs(%n. (app fact (n - 0))))) ?T"; |
| 9015 | 10 |
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pgoal "typeof (fix (%fact. abs(%n. cond (n eq 0) (S 0) \ |
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\(n * (app fact (n - (S 0))))))) ?T"; |
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pgoal "typeof (abs(%v. 0)) ?T"; (*correct only solution (?A1 -> nat) *) |
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Goal "typeof (abs(%v. 0)) ?T"; |
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by (prolog_tac [bad1_typeof,common_typeof]); (* 1st result ok*) |
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back(); (* 2nd result (?A1 -> ?A1) wrong *) |
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(*pgoal "typeof (abs(%v. abs(%v. app v v))) ?T"; correctly fails*) |
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Goal "typeof (abs(%v. abs(%v. app v v))) ?T"; |
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by (prolog_tac [bad2_typeof,common_typeof]); |
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(* wrong result ((?A3 -> ?B3) -> ?A3 -> ?B3)*) |