| author | Christian Urban <christian.urban@kcl.ac.uk> | 
| Mon, 08 Nov 2021 18:57:50 +0000 | |
| changeset 410 | e02f285e3a01 | 
| parent 403 | 312c9eb39ad8 | 
| child 430 | 4029552de5fc | 
| permissions | -rw-r--r-- | 
import M3._ assert(nullable(ZERO) == false) assert(nullable(ONE) == true) assert(nullable(CHAR('a')) == false) assert(nullable(ZERO | ONE) == true) assert(nullable(ZERO | CHAR('a')) == false) assert(nullable(ONE ~ ONE) == true) assert(nullable(ONE ~ CHAR('a')) == false) assert(nullable(STAR(ZERO)) == true)