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editIn logic and mathematics, a tacit extension is in formal respects the simplest or the logically least committal of the several possible set operations that are inverse to the set-theoretic operation of projection.
See also
- Cartesian product
- Inverse relation
- Projection (set theory)
- Relation (mathematics)
- Relation composition
- Relation reduction
Some content adapted from the Wikinfo article “Tacit extension” under the GNU Free Documentation License.