Logical Reasoning :: Symbols and Notations
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a + b means a is neither less than nor equal to b.a - b means a is neither smaller nor greater than b.a = b means a is not less than b.a * b means a is not greater than b.a / b means a is neither greater than nor equal to b.Statements: P + Q, Q - R, R + SConclusions: I. P = SII. P / R
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a £ b means a is less than or equal to b.a $ b means a is greater than or equal to b.a ↑ b means a is less than b.a â— b means a is greater than b.a â–² b means a is equal to b.Statement: a â— b, b â–² c, c ₤ dConclusions: I. d ↑ bII. b â–² d
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p ۞ q means p is neither less than nor equal to q.p @ q means p is neither greater than nor equal to q.p # q means p is not less than q.p ∆ q means p is not greater than q.p □ q means p is neither smaller nor greater than q.Statement: p # q, q ۞ r, r ∆ sConclusions: I. s ۞ pII. q @ s
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P @ Q means P is neither greater than nor equal to Q.P # Q means P is not less than Q.P $ Q means P is neither greater than nor less than Q.P © Q means P is not greater than Q.P % Q means P is neither lesser than nor equal to Q.Statements: J % M, J © R, S $ R, S © T.Conclusions: I. J @ SII. T % JIII. J $ T
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a + b means a is neither less than nor equal to b.a - b means a is neither smaller nor greater than b.a = b means a is not less than b.a * b means a is not greater than b.a / b means a is neither greater than nor equal to b.Statement: X + Y, Y * Z, W = ZConclusions: I. Y * WII. X + Z
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a £ b means a is less than or equal to b.a $ b means a is greater than or equal to b.a ↑ b means a is less than b.a â— b means a is greater than b.a â–² b means a is equal to b.Statement: m â–² n, n ₤ o, o â— pConclusion: I. p â— mII. m ₤ o
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p ۞ q means p is neither less than nor equal to q.p @ q means p is neither greater than nor equal to q.p # q means p is not less than q.p ∆ q means p is not greater than q.p □ q means p is neither smaller nor greater than q.Statement: a □ b, c ∆ d, b ۞ cConclusions: I. a ۞ cII. b # d
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P @ Q means P is neither greater than nor equal to Q.P # Q means P is not less than Q.P $ Q means P is neither greater than nor less than Q.P © Q means P is not greater than Q.P % Q means P is neither lesser than nor equal to Q.Statements: T $ X, X # W, W @ Y, Y % Z.Conclusions: I. T % WII. X @ YIII. Z % W
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a + b means a is neither less than nor equal to b.a - b means a is neither smaller nor greater than b.a = b means a is not less than b.a * b means a is not greater than b.a / b means a is neither greater than nor equal to b.Statement: E / F, F + G, G - HConclusions: I. E + HII. F + H
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a £ b means a is less than or equal to b.a $ b means a is greater than or equal to b.a ↑ b means a is less than b.a â— b means a is greater than b.a â–² b means a is equal to b.Statement: a $ b, b â— c, c ↑ dConclusions: I. a â–² cII. b £ d