In mathematical logic, a logical system has the erasure property if and only if no subset of the propositions can be added to another subset of the propositions to refute a consequence. For instance, if proposition A means "the store is open from 8:00 to 22:00" and proposition B means "except Tuesdays", the system AB does NOT have erasure.

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  • In mathematical logic, a logical system has the erasure property if and only if no subset of the propositions can be added to another subset of the propositions to refute a consequence. For instance, if proposition A means "the store is open from 8:00 to 22:00" and proposition B means "except Tuesdays", the system AB does NOT have erasure.
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  • In mathematical logic, a logical system has the erasure property if and only if no subset of the propositions can be added to another subset of the propositions to refute a consequence. For instance, if proposition A means "the store is open from 8:00 to 22:00" and proposition B means "except Tuesdays", the system AB does NOT have erasure.
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  • Erasure (logic)
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