equal
deleted
inserted
replaced
1 theory ToyList |
1 theory ToyList |
2 import PreList |
2 imports PreList |
3 begin |
3 begin |
4 |
4 |
5 datatype 'a list = Nil ("[]") |
5 datatype 'a list = Nil ("[]") |
6 | Cons 'a "'a list" (infixr "#" 65) |
6 | Cons 'a "'a list" (infixr "#" 65) |
7 |
7 |