| semantic tableau | |
| —n | |
| 1. | a method of demonstrating the consistency or otherwise of a set of statements by constructing a diagrammatic representation of all the circumstances that satisfy the set of statements |
| 2. | the diagram so constructed |
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| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
| a chattering or flighty, light-headed person. |