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For the following list of premises, derive the indicated conclusion and complete the justification.  1.  S v H2.  B • E3.  R ⊃ G4.             ,       Simp

Contrapose the following proposition and state whether the contrapositive is logically equivalent or not logically equivalent to the given proposition. All physicians whose licenses have been revoked are physicians ineligible to practice.

For the following list of premises, derive the indicated conclusion and complete the justification.  1.  (Q v K) • ~B2.  (M • R) ⊃ D3.  (W • S) v (G • F) 4.                ,       Simp

Determine whether the following passage is an argument or a non-argument. Freedom of the press is the most important of our constitutionally guaranteed freedoms. Without it, our other freedoms would be immediately threatened. Furthermore, it provides the fulcrum for the advancement of new freedoms.

For the following list of premises, derive the conclusion and supply the justification for it.  1. S2. S ⊃ M3.       

Change the quality but not the quantity of the following statements. Some slumlords are people who eventually wind up in jail.

Use the change of quantifier rule together with the eighteen rules of inference to derive the conclusions of the following symbolized argument: (x)Ax ⊃ (Ǝx)Bx (x)~Bx                   / (Ǝx)~Ax

Use truth tables to determine whether the following symbolized statement is tautologous, self-contradictory, or contingent. (S ⊃ R) • (S • ~R)

For the following list of premises, derive the conclusion and supply the justification for it.  1. ~J v P2. ~J3. S ⊃ J4.          

Use the first eight rules of inference to derive the conclusion of the following symbolized argument: 1.  (H v ~B) ⊃ R2.  (H v ~M) ⊃ P3.  H                       / R • P