Logic and Philosophy of Mathematics

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Last post

What is a true first cause?

Last post by Immanuel Can « Sun Mar 29, 2015 2:11 pm
Replies: 112
by Philosophy Explorer » Sun Mar 15, 2015 6:01 am
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112 Replies

27760 Views

Last post by Immanuel Can
Sun Mar 29, 2015 2:11 pm
Navier-Stokes proof claimed by Kazakh mathematician

Last post by Blaggard « Mon Mar 23, 2015 11:12 pm
Replies: 2
by Blaggard » Fri Jan 24, 2014 4:48 am

2 Replies

3096 Views

Last post by Blaggard
Mon Mar 23, 2015 11:12 pm
Can Time Dilation be explained with Newton Physics?

Last post by GreatandWiseTrixie « Mon Mar 09, 2015 12:38 pm
Replies: 17
by GreatandWiseTrixie » Fri Mar 06, 2015 5:12 pm
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17 Replies

5853 Views

Last post by GreatandWiseTrixie
Mon Mar 09, 2015 12:38 pm
Starting point

Last post by Breath « Sat Mar 07, 2015 10:19 am
Replies: 3
by Philosophy Explorer » Thu Mar 05, 2015 1:17 pm

3 Replies

2303 Views

Last post by Breath
Sat Mar 07, 2015 10:19 am
The screening committee

Last post by Philosophy Explorer « Tue Mar 03, 2015 1:57 pm

by Philosophy Explorer » Tue Mar 03, 2015 1:57 pm

0 Replies

1234 Views

Last post by Philosophy Explorer
Tue Mar 03, 2015 1:57 pm
Why ought people be rational?

Last post by egg3000 « Tue Feb 24, 2015 7:22 pm
Replies: 21
by egg3000 » Tue Feb 17, 2015 5:04 pm
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21 Replies

6519 Views

Last post by egg3000
Tue Feb 24, 2015 7:22 pm
An Axiomatic Proof

Last post by Arising_uk « Wed Feb 11, 2015 11:14 pm
Replies: 31
by egg3000 » Mon Jan 19, 2015 4:22 am
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31 Replies

9054 Views

Last post by Arising_uk
Wed Feb 11, 2015 11:14 pm
The Gaussian function is it useless or useful?

Last post by GreatandWiseTrixie « Mon Feb 09, 2015 11:58 pm
Replies: 1
by Blaggard » Wed Feb 04, 2015 7:39 pm

1 Replies

1326 Views

Last post by GreatandWiseTrixie
Mon Feb 09, 2015 11:58 pm
The Riddle of Epicurus

Last post by GreatandWiseTrixie « Mon Feb 09, 2015 11:55 pm
Replies: 5
by SVEN11 » Fri Jan 09, 2015 12:54 pm

5 Replies

2972 Views

Last post by GreatandWiseTrixie
Mon Feb 09, 2015 11:55 pm
What is a good sample?

Last post by Lev Muishkin « Fri Jan 23, 2015 12:08 pm
Replies: 17
by Philosophy Explorer » Mon Jan 19, 2015 2:56 am
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17 Replies

5644 Views

Last post by Lev Muishkin
Fri Jan 23, 2015 12:08 pm
Can comparing the age of two persons be Statistics?

Last post by Philosophy Explorer « Mon Jan 19, 2015 2:41 am
Replies: 1
by ararapina » Wed Jan 14, 2015 3:52 pm

1 Replies

1630 Views

Last post by Philosophy Explorer
Mon Jan 19, 2015 2:41 am
truth tree

Last post by Blaggard « Sun Jan 11, 2015 1:22 am
Replies: 1
by SVEN11 » Fri Jan 09, 2015 12:34 pm

1 Replies

1395 Views

Last post by Blaggard
Sun Jan 11, 2015 1:22 am
Logic is perfect

Last post by SpheresOfBalance « Wed Jan 07, 2015 3:18 pm
Replies: 143
by Blaggard » Sun Feb 09, 2014 7:13 pm
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143 Replies

43917 Views

Last post by SpheresOfBalance
Wed Jan 07, 2015 3:18 pm
Is this an extension of Fermat's Theorem?

Last post by Philosophy Explorer « Wed Nov 19, 2014 10:04 pm
Replies: 2
by Philosophy Explorer » Mon Nov 17, 2014 5:18 pm

2 Replies

2012 Views

Last post by Philosophy Explorer
Wed Nov 19, 2014 10:04 pm
Number patterns

Last post by Philosophy Explorer « Thu Nov 13, 2014 7:36 pm
Replies: 17
by Philosophy Explorer » Thu Nov 06, 2014 7:52 pm
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17 Replies

6657 Views

Last post by Philosophy Explorer
Thu Nov 13, 2014 7:36 pm
Counterfactual Logics and Trees

Last post by Arising_uk « Wed Nov 12, 2014 3:40 am
Replies: 1
by egg3000 » Sat Nov 08, 2014 2:19 am

1 Replies

1509 Views

Last post by Arising_uk
Wed Nov 12, 2014 3:40 am
Math vs language

Last post by uwot « Sun Nov 02, 2014 3:49 pm
Replies: 1
by pljamesone@att.net » Sun Nov 02, 2014 1:47 pm

1 Replies

1906 Views

Last post by uwot
Sun Nov 02, 2014 3:49 pm
Prime number distribution

Last post by Philosophy Explorer « Thu Oct 30, 2014 1:25 am

by Philosophy Explorer » Thu Oct 30, 2014 1:25 am

0 Replies

1797 Views

Last post by Philosophy Explorer
Thu Oct 30, 2014 1:25 am
Which irrational number has the highest imbedded primes?

Last post by Philosophy Explorer « Thu Oct 30, 2014 12:05 am
Replies: 2
by Philosophy Explorer » Wed Oct 29, 2014 11:14 pm

2 Replies

1595 Views

Last post by Philosophy Explorer
Thu Oct 30, 2014 12:05 am
How abstract can math get and still be useful?

Last post by Wyman « Fri Sep 26, 2014 2:22 pm
Replies: 90
by Philosophy Explorer » Wed Sep 17, 2014 8:00 pm
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90 Replies

26029 Views

Last post by Wyman
Fri Sep 26, 2014 2:22 pm
Question of hierarchical conditions and standardized levels

Last post by The Voice of Time « Sat Sep 20, 2014 4:27 pm
Replies: 12
by The Voice of Time » Fri Sep 19, 2014 9:55 pm

12 Replies

3640 Views

Last post by The Voice of Time
Sat Sep 20, 2014 4:27 pm
Can we put a hole inside of a hole?

Last post by Arising_uk « Thu Sep 04, 2014 1:12 am
Replies: 15
by Philosophy Explorer » Sun Aug 31, 2014 4:08 pm
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15 Replies

6619 Views

Last post by Arising_uk
Thu Sep 04, 2014 1:12 am
Magic squares

Last post by Philosophy Explorer « Sun Aug 31, 2014 8:53 am

by Philosophy Explorer » Sun Aug 31, 2014 8:53 am

0 Replies

1750 Views

Last post by Philosophy Explorer
Sun Aug 31, 2014 8:53 am
Permutation of Elements of Causal Structures

Last post by The Voice of Time « Fri Aug 08, 2014 4:00 am
Replies: 9
by The Voice of Time » Wed Jun 25, 2014 1:57 pm

9 Replies

4778 Views

Last post by The Voice of Time
Fri Aug 08, 2014 4:00 am
The often forgotten reasoning of equivalent contraposition

Last post by NielsBohr « Thu Aug 07, 2014 9:35 am

by NielsBohr » Thu Aug 07, 2014 9:35 am

0 Replies

1886 Views

Last post by NielsBohr
Thu Aug 07, 2014 9:35 am
Why do Conditional Semantics matter?

Last post by Ginkgo « Tue Jul 01, 2014 11:38 pm
Replies: 2
by George_S » Tue Jul 01, 2014 1:19 am

2 Replies

2033 Views

Last post by Ginkgo
Tue Jul 01, 2014 11:38 pm
Making a truth table (logics)

Last post by Arising_uk « Wed Mar 19, 2014 3:22 am
Replies: 3
by Janbaas » Mon Mar 17, 2014 4:38 pm

3 Replies

2295 Views

Last post by Arising_uk
Wed Mar 19, 2014 3:22 am
Absolute and Potential Values of Unifiables

Last post by The Voice of Time « Wed Feb 12, 2014 5:32 am

by The Voice of Time » Wed Feb 12, 2014 5:32 am

0 Replies

1685 Views

Last post by The Voice of Time
Wed Feb 12, 2014 5:32 am
are numbers the result of feelings

Last post by Blaggard « Sun Feb 09, 2014 7:42 pm
Replies: 19
by jackles » Fri Oct 04, 2013 10:50 am
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19 Replies

7896 Views

Last post by Blaggard
Sun Feb 09, 2014 7:42 pm
Two Deceptions About Objects of Needs

Last post by The Voice of Time « Tue Nov 19, 2013 7:52 pm
Replies: 3
by The Voice of Time » Mon Nov 18, 2013 1:21 pm

3 Replies

2662 Views

Last post by The Voice of Time
Tue Nov 19, 2013 7:52 pm
Advice for studying math and logic

Last post by Arising_uk « Sun Nov 17, 2013 9:38 pm
Replies: 4
by zefan13 » Wed Oct 16, 2013 2:36 am

4 Replies

3540 Views

Last post by Arising_uk
Sun Nov 17, 2013 9:38 pm
Thought experiments

Last post by jackles « Thu Oct 31, 2013 10:02 am
Replies: 5
by tdecelles » Wed Jun 12, 2013 7:49 pm

5 Replies

3760 Views

Last post by jackles
Thu Oct 31, 2013 10:02 am
does the maths of nonlocality =the nonphysic

Last post by jackles « Sat Oct 26, 2013 1:03 am

by jackles » Sat Oct 26, 2013 1:03 am

0 Replies

1823 Views

Last post by jackles
Sat Oct 26, 2013 1:03 am
Metaphor: Blind Chess Game and the Unknown Opponent

Last post by The Voice of Time « Fri Oct 11, 2013 1:56 am

by The Voice of Time » Fri Oct 11, 2013 1:56 am

0 Replies

3019 Views

Last post by The Voice of Time
Fri Oct 11, 2013 1:56 am
Logical Impossibility: Sex Does Not Exist

Last post by The Voice of Time « Mon Oct 07, 2013 11:55 pm

by The Voice of Time » Mon Oct 07, 2013 11:55 pm

0 Replies

5409 Views

Last post by The Voice of Time
Mon Oct 07, 2013 11:55 pm
Problems with "The Sunk Costs Fallacy"

Last post by The Voice of Time « Wed Sep 25, 2013 11:52 pm
Replies: 4
by The Voice of Time » Wed Sep 25, 2013 8:27 pm

4 Replies

2905 Views

Last post by The Voice of Time
Wed Sep 25, 2013 11:52 pm
The Illustrated Book of Bad Arguments

Last post by Kuznetzova « Sun Sep 08, 2013 5:18 am

by Kuznetzova » Sun Sep 08, 2013 5:18 am

0 Replies

2559 Views

Last post by Kuznetzova
Sun Sep 08, 2013 5:18 am
Is it possible for real things to only exist mathematically?

Last post by jackles « Sun Aug 25, 2013 7:28 am
Replies: 22
by The Voice of Time » Wed May 01, 2013 4:12 pm
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22 Replies

11174 Views

Last post by jackles
Sun Aug 25, 2013 7:28 am
All A are B, Some B are C, therefore some A are C?

Last post by duszek « Mon Aug 19, 2013 3:53 pm
Replies: 28
by Cecily » Sat Jun 22, 2013 11:49 am
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28 Replies

57899 Views

Last post by duszek
Mon Aug 19, 2013 3:53 pm
Aquinas's First Cause in formal notation.

Last post by Godfree « Sun Aug 04, 2013 8:06 pm
Replies: 7
by Kuznetzova » Tue Jun 25, 2013 12:10 am

7 Replies

5762 Views

Last post by Godfree
Sun Aug 04, 2013 8:06 pm
Russell's Paradox

Last post by Owen « Sat Jun 29, 2013 11:05 pm
Replies: 18
by Mike Strand » Sat Jan 07, 2012 6:54 pm
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18 Replies

11112 Views

Last post by Owen
Sat Jun 29, 2013 11:05 pm
A Nobel Prize for Literature & Peace, But Not Math?

Last post by The Voice of Time « Mon May 27, 2013 6:49 pm
Replies: 19
by bobevenson » Fri May 24, 2013 7:18 pm
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19 Replies

9366 Views

Last post by The Voice of Time
Mon May 27, 2013 6:49 pm
Proposal for difference between types of pattern

Last post by SpheresOfBalance « Fri May 24, 2013 11:57 am
Replies: 34
by The Voice of Time » Tue May 14, 2013 8:22 pm
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34 Replies

12578 Views

Last post by SpheresOfBalance
Fri May 24, 2013 11:57 am
Proof that water does not equal H2O

Last post by Impenitent « Thu Apr 18, 2013 1:56 am
Replies: 4
by brain in a vat » Tue Apr 16, 2013 10:17 am

4 Replies

4551 Views

Last post by Impenitent
Thu Apr 18, 2013 1:56 am
"Project Logic" #1

Last post by Airsome « Sat Apr 13, 2013 9:29 am
Replies: 140
by wleg » Fri Nov 09, 2012 10:17 pm
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140 Replies

48078 Views

Last post by Airsome
Sat Apr 13, 2013 9:29 am
Universal Propositions updated

Last post by Airsome « Sat Apr 13, 2013 9:16 am
Replies: 2
by Airsome » Wed Apr 10, 2013 2:48 pm

2 Replies

2404 Views

Last post by Airsome
Sat Apr 13, 2013 9:16 am
A contradiction regarding the size of negative numbers

Last post by chaz wyman « Wed Dec 12, 2012 2:55 pm
Replies: 24
by SecularCauses » Sun Oct 07, 2012 11:48 pm
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24 Replies

13377 Views

Last post by chaz wyman
Wed Dec 12, 2012 2:55 pm
Something odd about the number of odd numbers

Last post by Mike Strand « Tue Oct 23, 2012 11:10 pm
Replies: 8
by SecularCauses » Sat Oct 06, 2012 6:55 am

8 Replies

7178 Views

Last post by Mike Strand
Tue Oct 23, 2012 11:10 pm
xkcd

Last post by Mike Strand « Tue Oct 16, 2012 10:48 pm
Replies: 7
by Metazoan » Sat Oct 08, 2011 1:44 pm

7 Replies

5151 Views

Last post by Mike Strand
Tue Oct 16, 2012 10:48 pm
Why do coin toss results seem contradictory?

Last post by ForgedinHell « Tue Sep 04, 2012 10:24 pm
Replies: 53
by ForgedinHell » Mon Aug 27, 2012 12:36 am
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53 Replies

26294 Views

Last post by ForgedinHell
Tue Sep 04, 2012 10:24 pm

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