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A necessary and sufficient condition for a product relation to be total |
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| Authors: | Frederick C Furtek |
| Affiliation: | The Charles Stark Draper Laboratory, Cambridge, Massachusetts 02139 USA |
| Abstract: | Let A, B, and C be sets, let ? be a relation on A × B, and let σ be a relation on B × C. A necessary and sufficient condition for ? ° σ to be total is provided in terms of a DeMorgan algebra defined on B. |
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