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약식 진리표 ∧ ∨ → ↔ =
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약식 진리표 [예] ~A→(B→C) A B C ~ A → (B→C) 0 1 1 0
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[연습] 다음 식을 약식 진리표를 이용하여 함수값을 구하여 서로 비교해 보시오.
(1) (A→B)∧(B→A) (2) (A∨B)∧ꍃ(A∧B) (3) (A→ꍃB)∧(ꍃA→B) (4) (A∧ꍃB)∨(ꍃA∧B) (5) (A→B)∧(B→C)→(A→C)
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(1) (A→B)∧(B→A) (2) (A∨B)∧~(A∧B)
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(1) (A→B)∧(B→A) (2) (A∨B)∧~(A∧B)
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(1) (A→B)∧(B→A) (2) (A∨B)∧~(A∧B)
1
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(1) (A→B)∧(B→A) (2) (A∨B)∧~(A∧B)
1
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(5) ((A→B)∧(B→C))→(A→C)
0 1
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(5) ((A→B)∧(B→C))→(A→C)
0 1 1
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(5) ((A→B)∧(B→C))→(A→C)
0 1 1 1
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(5) ((A→B)∧(B→C))→(A→C)
0 1 1 1
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(5) ((A→B)∧(B→C))→(A→C)
0 1 1 1 0
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(5) ((A→B)∧(B→C))→(A→C)
0 1 1 1 0
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(5) ((A→B)∧(B→C))→(A→C)
0 1 1 1 0
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(5) ((A→B)∧(B→C))→(A→C)
0 1 1 1 0
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(5) ((A→B)∧(B→C))→(A→C)
0 1 1 1 0
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(5) ((A→B)∧(B→C))→(A→C)
0 1 1 1 0
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