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hekate:dl_intro [2013/01/17 10:48] ikaf |
hekate:dl_intro [2013/11/03 14:22] ikaf [Examples of DL expressions] |
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| * <latex> cat(Tibbs)</latex> Tibbs is a cat | * <latex> cat(Tibbs)</latex> Tibbs is a cat | ||
| * role assertions e.g. | * role assertions e.g. | ||
| - | * <latex> has\_pet(Fred, Tibbs)</latex> - Fred has a pet which is Tibbs | + | * <latex> has\_pet(Fred, Tibbs) </latex> - Fred has a pet which is Tibbs |
| * statements about concepts | * statements about concepts | ||
| * concept definitions (__necessary and sufficient__ conditions) e.g. | * concept definitions (__necessary and sufficient__ conditions) e.g. | ||
