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Logic Level 1

If $A \Rightarrow B$ , does $B \Rightarrow A$ ?

Not necessarily Yes, definitely

9 solutions

Tushar Kaushik
Jun 13, 2015

If you love a girl that doesn't mean that she also loves you

True story.

Daniel Liu - 6 years ago

Is it like a square can be a rectangle but a rectangle can't be a square?

Jingyang Tan - 5 years, 12 months ago

a rectangle may or may not be a square ....

Shoaib Muneer - 5 years, 11 months ago

amen brother.

Cyrus Shirkoohi - 5 years, 12 months ago

Nice example!

Nihar Mahajan - 6 years ago

Can't argue with that logic. +1.

Mehul Arora - 5 years, 12 months ago

Shouldn't there be an opposite and equal reaction for every action?

Agnishom Chattopadhyay - 5 years, 12 months ago

Not necessarily unless you see an "=".

Jess Neil Hornijas - 5 years, 8 months ago

So true. +1

Sharky Kesa - 6 years ago

So whats the mathematical reason?

sandeep Rathod - 5 years, 12 months ago

The angle between the angle bisectors of the angles in linear pair is $90^\circ$ . However , the converse of this statement is not true.

Nihar Mahajan - 5 years, 12 months ago

@Nihar Mahajan – $A$ is a subset of $B$ but converse is not necessarily true..

Rishabh Tripathi - 5 years, 12 months ago

Try this as a continued exercise .

Nihar Mahajan - 5 years, 12 months ago

you are brilliant

Yahya Salah - 5 years, 11 months ago

THATS ONE SIDED LOVE

uttkarsh kohli - 5 years, 10 months ago

lol... nice explaination....

Vipul Kumar - 5 years, 9 months ago

Haha. Great way of explaining 😂

Annie Li - 3 years, 10 months ago

Uttkarsh Kohli
Jul 12, 2015

IF U THINK SOMEONE IS YOUR GOOD FRIEND DOESNT MEAN EVEN HE THINKS THE SAME

PLEASE UPVOTE!

Hazem Mohamed
Jun 22, 2015

Point A in plane B But Plane B not in Point A ;)

Bhavik Knight
Jun 22, 2015

You can simply understand by set concepts. A --> B means all As are Bs or A is a subset of B. Reverse is not true.

If you want LOGICal explanation, look at this. A --> B is equivalent to (~A) v B, however B --> A is equivalent to (~B) v A.

Check the truth table for both, you'll find some difference in results for same input of A & B.

Mohammed owais Khokhar
Jun 17, 2015

lion won't eat you,because you won't eat a lion. (converse statments)

converse of statement is not necessarily true.

Human don't eat lions. Wrong statement.

Hazem Mohamed - 5 years, 11 months ago

Actually, people do eat lion. Take a look at this article.

Lew Sterling Jr - 5 years, 11 months ago

Ajay Aditya
Jan 15, 2017

Prime => Odd but Odd doesn't => Prime.

Ajay Pal Srivastav
Nov 8, 2015

As we all know that square is a rhombus but rhombus is not a square. Lets square be A and rhombus be B A=B but B is not equals to A

Charlie Large
Oct 17, 2015

all cheese is milk, but milk is not cheese.

Elijah Foster
Sep 17, 2015

I looked at it like 0.99999 can be 1 if rounding to a whole number but 1 can't be 0.999999

Anyway you look at it, the answer is still wrong and I'm right

Joshua Schutz - 5 years, 8 months ago

You can't compare things that are not equal such as love, friendships, animals to humans, or decimals to whole numbers because the definition of equal is being the exact same in size, quantity, value, or degree

Joshua Schutz - 5 years, 8 months ago

What is this arrow sign?

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