Browsing all problems

  • Chapter Four Sample Quiz #4, Question #3

    • 1) (A&-B)→(R↔S)
    • 2) A&G
    • 3) G→-B
    • 4) (S→R)→T
    Conclusion: T
    Solve!

  • Chapter Four #22

    • 1) K→(G&H)
    • 2) L↔K
    • 3) L
    • 4) E
    Conclusion: G&E
    Solve!

  • Chapter Four #23

    • 1) M→Y
    • 2) R↔(Y→M)
    • 3) N&(T&R)
    Conclusion: Y↔M
    Solve!

  • Chapter Three Packet #11

    • 1) H→(J→R)
    • 2) H→J
    • 3) H
    • 4) R→P
    Conclusion: P
    Solve!

  • Chapter Three Packet #13

    • 1) (L→M)→N
    • 2) E→D
    • 3) (E→D)→(L→M)
    • 4) N→R
    Conclusion: R
    Solve!

  • Chapter Three Packet #14

    • 1) L→(J→H)
    • 2) H→(P→K)
    • 3) J
    • 4) L
    Conclusion: P→K
    Solve!

  • Chapter Three Packet #15

    • 1) E→(-F→W)
    • 2) E
    • 3) (-F→W)→(T→Q)
    • 4) T
    Conclusion: Q
    Solve!

  • Chapter Three Packet #16

    • 1) E→H
    • 2) (R→P)→E
    • 3) A→(R→P)
    • 4) A
    Conclusion: H
    Solve!

  • Chapter Three Packet #17

    • 1) (S→-E)→(J→N)
    • 2) M→(S→-E)
    • 3) J
    • 4) M
    Conclusion: N
    Solve!

  • Chapter Four #21

    • 1) (A&X)↔(B&O)
    • 2) E→B
    • 3) L→O
    • 4) E&L
    Conclusion: A
    Solve!

  • Chapter Four Packet #34

    • 1) K↔(F&E)
    • 2) F→M
    • 3) K
    Conclusion: M&E
    Solve!

  • Chapter Four Packet #35

    • 1) R&T
    • 2) R→(J→H)
    • 3) M→(H→J)
    • 4) T→M
    Conclusion: J↔H
    Solve!

  • Chapter Three #2

    • 1) E→(M→R)
    • 2) M
    • 3) E
    Conclusion: R
    Solve!

  • Chapter Four #20

    • 1) (L↔T)→G
    • 2) E&(T→L)
    • 3) (G→R)&(L→T)
    Conclusion: R
    Solve!

  • Chapter Five #1

    • 1) R
    Conclusion: R∨K
    Solve!

  • Chapter Five #2

    • 1) M&R
    Conclusion: (R∨S)&(E∨M)
    Solve!

  • Chapter Five #3

    • 1) L→T
    • 2) (T∨J)→W
    • 3) L
    Conclusion: W
    Solve!

  • Chapter Five #4

    • 1) P&G
    • 2) (G∨M)→N
    Conclusion: N&P
    Solve!

  • Chapter Five #5

    • 1) (E∨B)→J
    • 2) (F∨H)→B
    • 3) F&A
    Conclusion: J&A
    Solve!

  • Chapter Five #6

    • 1) (J&L)↔N
    • 2) N&K
    Conclusion: K&(L∨P)
    Solve!

  • Chapter Five #7

    • 1) R
    Conclusion: G∨(M∨(E∨R))
    Solve!

  • Chapter Five #8

    • 1) (((A∨B)∨C)∨D)→E
    • 2) B
    Conclusion: E∨F
    Solve!

  • Chapter Five #9

    • 1) (K∨T)↔E
    • 2) K↔(P&H)
    • 3) H&(-M→P)
    • 4) -M
    Conclusion: E
    Solve!

  • Chapter Five #10

    • 1) A→(-B&-C)
    • 2) -B→D
    • 3) (-C→E)&A
    Conclusion: (D∨F)&E
    Solve!

  • Chapter Five #11

    • 1) A→C
    • 2) B→C
    • 3) A∨B
    Conclusion: C
    Solve!

  • Chapter Five #12

    • 1) P∨(E&S)
    • 2) P→-J
    • 3) (E&S)→-J
    Conclusion: -J
    Solve!

  • Chapter Five #13

    • 1) K↔N
    • 2) N∨W
    • 3) W→K
    Conclusion: K
    Solve!

  • Chapter Five #14

    • 1) L→(H→B)
    • 2) L&E
    • 3) E→(H∨-S)
    • 4) -S→B
    Conclusion: B
    Solve!

  • Chapter Five #15

    • 1) (P&B)→(S→G)
    • 2) M∨(P&B)
    • 3) S
    • 4) M→(S→G)
    Conclusion: G
    Solve!

  • Chapter Five #16

    • 1) E∨L
    • 2) L→(A&B)
    • 3) E→(A&B)
    • 4) B→C
    Conclusion: C∨D
    Solve!

  • Chapter Five #17

    • 1) R→(W∨(C&G))
    • 2) R&-M
    • 3) -M→(W→H)
    • 4) (C&G)→H
    Conclusion: H
    Solve!

  • Chapter Five Sample Quiz #1, Proof #1

    • 1) A
    • 2) (P∨A)→(E&L)
    • 3) E→S
    Conclusion: S&L
    Solve!

  • Chapter Five Sample Quiz #1, Proof #2

    • 1) (M∨P)&(M→S)
    • 2) P→S
    • 3) S→W
    Conclusion: W
    Solve!

  • Chapter Five Sample Quiz #2, Proof #2

    • 1) B∨F
    • 2) W&(B→(P&R))
    • 3) F→(P&R)
    Conclusion: R
    Solve!

  • Chapter Five Sample Quiz #3, Proof #1

    • 1) S→(J&M)
    • 2) R→(J&M)
    • 3) (S∨R)&L
    • 4) J→K
    Conclusion: K&L
    Solve!

  • Chapter Five Sample Quiz #3, Proof #2

    • 1) A
    • 2) (A∨B)→C
    • 3) (A∨E)→D
    Conclusion: C&D
    Solve!

  • Chapter Five Sample Quiz #4, Proof #1

    • 1) R↔G
    • 2) M→(T→R)
    • 3) M&N
    • 4) G∨T
    Conclusion: R
    Solve!

  • Chapter Five Sample Quiz #4, Proof #2

    • 1) (K∨S)→H
    • 2) K&E
    • 3) (P∨E)→B
    Conclusion: B&H
    Solve!

  • Chapter Five #21

    • 1) H∨S
    • 2) J&(H→E)
    • 3) S→E
    Conclusion: E∨P
    Solve!

  • Chapter Five #22

    • 1) (L&K)↔T
    • 2) W→(T∨D)
    • 3) W&(D→(L&K))
    Conclusion: L
    Solve!

  • Chapter Five #18

    • 1) A→E
    • 2) A∨M
    • 3) M→P
    Conclusion: E∨P
    Solve!

  • Chapter Five #19

    • 1) (S&P)→R
    • 2) M→N
    • 3) M∨(S&P)
    Conclusion: R∨N
    Solve!

  • Chapter Five #20

    • 1) B∨F
    • 2) (W∨M)→L
    • 3) B→W
    • 4) F→M
    Conclusion: L
    Solve!

  • Chapter Five Sample Quiz #2, Proof #1

    • 1) M&R
    • 2) (R∨K)→T
    • 3) T→G
    Conclusion: G∨L
    Solve!

  • Chapter Six #5

    • 1) A→(B&C)
    • 2) C→D
    Conclusion: A→D
    Solve!

  • Chapter Six #7

    • 1) R→(E→M)
    • 2) E
    Conclusion: R→M
    Solve!

  • Chapter Six #8

    • 1) P→S
    • 2) L→E
    Conclusion: (P&L)→(S&E)
    Solve!

  • Chapter Six #9

    • 1) G↔M
    • 2) G→E
    Conclusion: M→(G&E)
    Solve!

  • Chapter Six #10

    • 1) (L∨F)→N
    • 2) (N∨B)→K
    Conclusion: L→K
    Solve!

  • Chapter Six #11

    • 1) A→B
    • 2) B→C
    • 3) C→D
    Conclusion: A→(B&(C&D))
    Solve!

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