LOGICS-help...urgent

IIT JEE 2015 Discussion Forum › Fundamentals questions › LOGICS-help...urgent

cud anyone please explain me the implies statement and if and only if statement and how the truth tables are formed...please need serious help...

#Mathematics #Fundamentals

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5 Answers

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Kalyan IIT-K Beware I'm coming ·2010-03-06 20:25:24

can anyone make me understand???

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Manmay kumar Mohanty ·2010-03-06 20:36:51

IMPLIES MEANS IF BOTH P & Q R TRUE OR BOTH FALSE THEN P <-> Q IS TRUE OR ELSE IF EITHER IS FALSE
P <->Q IS FALSE

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Manmay kumar Mohanty ·2010-03-06 20:38:32

SORRY CAN'T WRITE MORE. SO U HAVE TO FOLLOW A BOOK.

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Bicchuram Aveek ·2010-03-06 22:18:26

ALL THIS IS IN SCHOOL BOOK MAN!!!!! GO through them !!!!

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Kalyan Pilla ·2010-03-07 05:48:23

Implies s true in only one direction.......

Statement A => Statement B

means if A is true B is also true, but if B is true, A may not be true......

Double implication, "the if and only if" clause, is true in both the directions

Statement A <=> Statement B

means if A is true B is also true, and if B is true, A is true...

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Your Answer

Basic Integral Calculus Operators Symbols Matrix Cases

√ √ || {} [] () → ~ ^ x x x → → ln log lg lim lim cos sin tan cot arcsin arccos arctan

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∑ ∑ ∑ ∑ ∑ ∮ ∮ ∮ ∮ ∮ ∏ ∏ ∏ ∏ ∏ ∐ ∐ ∐ ∐ ∐

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° ∂ ∞ α β γ δ θ λ μ ν ξ π ρ σ φ ω ε ƒ κ τ υ Γ Δ Λ Σ Π Ω