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| title | date | draft | images | math | medium_enabled |
|---|---|---|---|---|---|
| Theorem Proving Definitions | 2019-12-29T11:21:07-05:00 | false | true | true |
When I look into a new field, sometimes I get confused by the whole new set of vocab terms I need to encounter. This post will serve to keep me straight with the terms involved in theorem proving.
| Word | Definition |
|---|---|
| Modus Ponens | If P implies Q and P is asserted to be true, then Q must be true. |
| Complete | If every formula having the property can be derived using the system. (i.e The system does not miss a result) |
| Negation-Complete | Either \phi or \neg \phi can be proved in the system. |
| Consistent | For any provable formula \phi, the negation (\neg \phi) cannot be provable. (Cannot derive a contradiction) |
| Decidable | An effective method exists for deriving the correct answer in a finite time. |
| Sound | Every formula that can be proved in the system is logically valid with respect to the semantics of the system. (i.e The system does not produce a wrong result) |
Hopefully, I'll come back and add more terms as I get confused.