Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °

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**logical1****Member**- Registered: 2012-11-02
- Posts: 3

Love logic and puzzles (obviously ), this looks to be a fun place to exercise the brain!

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 102,404

Hi logical1;

Welcome to the forum!

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.** **A number by itself is useful, but it is far more useful to know how accurate or certain that number is.**

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**noelevans****Member**- Registered: 2012-07-20
- Posts: 236

Hi! Welcome aboard!

Have you run across G. Spencer Brown's "Laws of Form" and his notation for two-valued logic?

It introduces a notation that uses a single symbol (in addition to the p,q,r,... for statements) to

represent and, or, implies, if and only if, not, and the truth value "T". The system of notation is

phenomenal and makes calculations of truth values extremely easy. Paying attention only to the

notational system and its rules of operation is really neat. But trying to understand his more or

less (according to me) "philosophical" language of "distinctions, crossings" etc is another matter.

I gave up on it and just took the notational system and ran with it. Works really great. Oh, and

the one symbol also does grouping.

I think there are sites where you can download it for free. Enjoy!

Writing "pretty" math (two dimensional) is easier to read and grasp than LaTex (one dimensional).

LaTex is like painting on many strips of paper and then stacking them to see what picture they make.

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**anonimnystefy****Real Member**- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,000

Hi logical1

Welcome to the forum!

Here lies the reader who will never open this book. He is forever dead.

Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment

The knowledge of some things as a function of age is a delta function.

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**ShivamS****Member**- Registered: 2011-02-07
- Posts: 3,648

Hi.

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**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 20,165

Hi logical1,

**Welcome to the forum!**

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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**bob bundy****Moderator**- Registered: 2010-06-20
- Posts: 7,503

hi logical1

Welcome to the forum!

This is a great place to exercise the brain. I'm still 'overheating' on phrontister's puzzles.

Bob

Next job. Look at the Sam Loyd puzzle you mention.

Children are not defined by school ...........The Fonz

You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei

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**Calligar****Member**- Registered: 2011-09-24
- Posts: 272

Hi logical1!

Welcome to the forum!

So far I like the games here, although, admittedly, I haven't done many. Hope you enjoy the games in that case!

There are always other variables. -[unknown]

But Nature flies from the infinite, for the infinite is unending or imperfect, and Nature ever seeks an end. -Aristotle

Everything makes sense, one only needs to figure out how. -[unknown]

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**mathgogocart****Member**- Registered: 2012-04-29
- Posts: 1,472

hi!

Hey.

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