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5 cards from this section. Quick, good the night before a test.
What does the resolution rule allow us to do?
Think about how conclusions can be derived from premises.
Define what a resolvent is.
Consider the new information created from resolving clauses.
What does the resolution rule allow?
Focus on the key action that the resolution rule performs.
Does an empty clause indicate a valid argument?
Consider what it means if you reach no clauses.
Given the premises: 'If A, then B' (A → B), 'If B, then C' (B → C) and 'A', show through resolution refutation that the conclusion 'C' is valid.
Focus on deriving new clauses step-by-step and watch for the empty clause.
Create a proof by resolution refutation for the premises: 'X ∨ Y' and '¬X', concluding 'Y'.
Combine the premises carefully and track resolutions leading to your conclusion.
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