Question: User If propositional logic formula phi 1 OR phi 2 is valid, which of the following statements are true? select all that apply phi 1
User
If propositional logic formula phi OR phi is valid, which of the following statements are true? select all that apply
phi is valid
phi is satisfiable
phi AND phi is satisfiable
NOT phi OR NOT phi is unsatisfiable
None of the above
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