| author | Christian Urban <christian.urban@kcl.ac.uk> | 
| Sun, 01 May 2022 12:41:56 +0100 | |
| changeset 422 | be20e7f67f76 | 
| parent 421 | 864107857d27 | 
| child 460 | f5c0749858fd | 
| 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)