Logic and Philosophy of Mathematics

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Comparing infinite sets

Last post by Lawrence Crocker « Mon Oct 05, 2015 9:21 pm
Replies: 5
by Philosophy Explorer » Sun Aug 31, 2014 2:44 pm

5 Replies

3536 Views

Last post by Lawrence Crocker
Mon Oct 05, 2015 9:21 pm
Axioms and postulates

Last post by Scott Mayers « Sat Oct 03, 2015 11:28 am
Replies: 5
by Philosophy Explorer » Fri Oct 02, 2015 3:15 pm

5 Replies

2511 Views

Last post by Scott Mayers
Sat Oct 03, 2015 11:28 am
The true meaning of numbers

Last post by Philosophy Explorer « Mon Sep 28, 2015 8:59 am
Replies: 5
by Philosophy Explorer » Fri Sep 25, 2015 1:06 am

5 Replies

2033 Views

Last post by Philosophy Explorer
Mon Sep 28, 2015 8:59 am
Another logic problem

Last post by Philosophy Explorer « Mon Sep 28, 2015 1:31 am

by Philosophy Explorer » Mon Sep 28, 2015 1:31 am

0 Replies

1240 Views

Last post by Philosophy Explorer
Mon Sep 28, 2015 1:31 am
Ten classic paradoxes

Last post by vegetariantaxidermy « Fri Sep 25, 2015 11:56 am
Replies: 1
by Philosophy Explorer » Fri Sep 25, 2015 8:16 am

1 Replies

1363 Views

Last post by vegetariantaxidermy
Fri Sep 25, 2015 11:56 am
What do you think of proof by computer?

Last post by Philosophy Explorer « Fri Sep 25, 2015 8:30 am

by Philosophy Explorer » Fri Sep 25, 2015 8:30 am

0 Replies

1118 Views

Last post by Philosophy Explorer
Fri Sep 25, 2015 8:30 am
Plato's Theory of Forms...

Last post by Obvious Leo « Mon Sep 21, 2015 9:22 pm
Replies: 84
by Scott Mayers » Thu Jul 16, 2015 3:50 am
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84 Replies

19143 Views

Last post by Obvious Leo
Mon Sep 21, 2015 9:22 pm
Where do patterns come from?

Last post by Philosophy Explorer « Mon Sep 21, 2015 1:09 am

by Philosophy Explorer » Mon Sep 21, 2015 1:09 am

0 Replies

1185 Views

Last post by Philosophy Explorer
Mon Sep 21, 2015 1:09 am
Proving that the difference between any two anagram numbers is always a multiple of nine

Last post by dionisos « Fri Sep 11, 2015 10:29 am
Replies: 59
by Philosophy Explorer » Mon Aug 17, 2015 3:59 am
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59 Replies

17401 Views

Last post by dionisos
Fri Sep 11, 2015 10:29 am
Is infinity all black and white?

Last post by wtf « Thu Sep 10, 2015 12:22 am
Replies: 5
by Philosophy Explorer » Thu May 07, 2015 3:31 pm

5 Replies

2584 Views

Last post by wtf
Thu Sep 10, 2015 12:22 am
Differential calculus defined by differences - what more meaningful ?

Last post by dionisos « Wed Sep 09, 2015 1:56 am
Replies: 12
by NielsBohr » Sat Aug 08, 2015 8:08 pm

12 Replies

4215 Views

Last post by dionisos
Wed Sep 09, 2015 1:56 am
What is a good proof in math?

Last post by dionisos « Fri Sep 04, 2015 9:10 pm
Replies: 8
by Philosophy Explorer » Fri Sep 04, 2015 5:26 pm

8 Replies

2976 Views

Last post by dionisos
Fri Sep 04, 2015 9:10 pm
For Bayes: No Exceptions to Cromwell's Rule

Last post by dionisos « Fri Sep 04, 2015 6:41 pm
Replies: 5
by Lawrence Crocker » Wed Sep 02, 2015 12:21 pm

5 Replies

2184 Views

Last post by dionisos
Fri Sep 04, 2015 6:41 pm
Does all math have potential use?

Last post by NielsBohr « Tue Aug 11, 2015 8:10 pm
Replies: 3
by Philosophy Explorer » Mon Aug 10, 2015 3:44 pm

3 Replies

1561 Views

Last post by NielsBohr
Tue Aug 11, 2015 8:10 pm
Is zero the greatest advance in mathematics?

Last post by Hobbes' Choice « Fri Jul 31, 2015 12:20 am
Replies: 33
by Philosophy Explorer » Fri Dec 19, 2014 11:35 pm
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33 Replies

8892 Views

Last post by Hobbes' Choice
Fri Jul 31, 2015 12:20 am
The first poster of this thread is God...

Last post by Dalek Prime « Sun Jul 26, 2015 5:11 am
Replies: 11
by Scott Mayers » Fri Jul 24, 2015 6:32 am

11 Replies

3174 Views

Last post by Dalek Prime
Sun Jul 26, 2015 5:11 am
Geometry (a useful fiction)

Last post by Hobbes' Choice « Tue Jul 14, 2015 2:02 pm
Replies: 30
by Nicomedes » Fri Jul 03, 2015 6:50 am
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30 Replies

7898 Views

Last post by Hobbes' Choice
Tue Jul 14, 2015 2:02 pm
Relative Mathematics

Last post by conway « Wed Jun 24, 2015 12:37 am

by conway » Wed Jun 24, 2015 12:37 am

0 Replies

1293 Views

Last post by conway
Wed Jun 24, 2015 12:37 am
What does zero times infinity equal?

Last post by Dalek Prime « Tue Jun 23, 2015 3:24 am
Replies: 22
by Philosophy Explorer » Mon Apr 13, 2015 11:18 pm
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22 Replies

6952 Views

Last post by Dalek Prime
Tue Jun 23, 2015 3:24 am
Is mathematics mostly deterministic or nondeterministic in nature?

Last post by Philosophy Explorer « Tue Jun 16, 2015 7:30 pm

by Philosophy Explorer » Tue Jun 16, 2015 7:30 pm

0 Replies

1272 Views

Last post by Philosophy Explorer
Tue Jun 16, 2015 7:30 pm
Which math foundation do you favor?

Last post by Dalek Prime « Mon Jun 15, 2015 4:27 am
Replies: 1
by Philosophy Explorer » Sun Sep 28, 2014 11:11 pm

1 Replies

1938 Views

Last post by Dalek Prime
Mon Jun 15, 2015 4:27 am
Soundness and Completeness of a limited language

Last post by Dalek Prime « Mon Jun 15, 2015 4:23 am
Replies: 1
by SynodOfDordt » Wed May 13, 2015 4:29 pm

1 Replies

1120 Views

Last post by Dalek Prime
Mon Jun 15, 2015 4:23 am
Is math merely an invention of the human mind?

Last post by Hobbes' Choice « Thu Jun 11, 2015 9:25 am
Replies: 21
by Philosophy Explorer » Wed Jun 10, 2015 7:17 am
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21 Replies

6262 Views

Last post by Hobbes' Choice
Thu Jun 11, 2015 9:25 am
Should you switch?

Last post by Philosophy Explorer « Wed Jun 03, 2015 9:21 pm

by Philosophy Explorer » Wed Jun 03, 2015 9:21 pm

0 Replies

1327 Views

Last post by Philosophy Explorer
Wed Jun 03, 2015 9:21 pm
"If P implies Q, and Q is false, then P is also false."

Last post by Rilx « Sun May 31, 2015 11:13 am
Replies: 12
by ReliStuPhD » Thu Feb 12, 2015 6:04 pm

12 Replies

5879 Views

Last post by Rilx
Sun May 31, 2015 11:13 am
What is the Purpose of Logic?

Last post by Systematic « Sat May 30, 2015 8:39 pm
Replies: 15
by Wyman » Fri Apr 24, 2015 2:57 pm
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15 Replies

9534 Views

Last post by Systematic
Sat May 30, 2015 8:39 pm
Infinity problem

Last post by Arising_uk « Mon May 25, 2015 10:52 pm
Replies: 18
by Philosophy Explorer » Thu May 21, 2015 8:56 pm
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18 Replies

5413 Views

Last post by Arising_uk
Mon May 25, 2015 10:52 pm
R.I.P. John Nash

Last post by Gary Childress « Mon May 25, 2015 3:37 pm
Replies: 1
by Obvious Leo » Mon May 25, 2015 3:54 am

1 Replies

1128 Views

Last post by Gary Childress
Mon May 25, 2015 3:37 pm
The Mathematics of Unifiables, and a New Periodic Table

Last post by Karrim « Mon May 25, 2015 4:57 am
Replies: 9
by The Voice of Time » Mon Jan 27, 2014 12:34 am

9 Replies

3908 Views

Last post by Karrim
Mon May 25, 2015 4:57 am
Kant and his philosophy of mathematics

Last post by Impenitent « Mon May 04, 2015 10:41 pm
Replies: 7
by volatileworld » Sun Jun 22, 2014 12:15 pm

7 Replies

3273 Views

Last post by Impenitent
Mon May 04, 2015 10:41 pm
Why do numbers exist?

Last post by Lawrence Crocker « Sun Apr 19, 2015 1:43 pm
Replies: 26
by qsa » Mon Feb 23, 2015 2:32 am
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26 Replies

9343 Views

Last post by Lawrence Crocker
Sun Apr 19, 2015 1:43 pm
Does a hole inside of a hole make the second hole "holier?"

Last post by artisticsolution « Fri Apr 10, 2015 3:28 pm
Replies: 8
by Philosophy Explorer » Thu Apr 02, 2015 11:19 am

8 Replies

3280 Views

Last post by artisticsolution
Fri Apr 10, 2015 3:28 pm
Monadic tautologies and contradictions?

Last post by Wyman « Tue Apr 07, 2015 3:22 pm
Replies: 20
by Arising_uk » Wed Dec 31, 2014 4:56 am
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2
20 Replies

7210 Views

Last post by Wyman
Tue Apr 07, 2015 3:22 pm
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

25882 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

3006 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

5465 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

2201 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

1177 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

6081 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

8405 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

1264 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

2798 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

5299 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

1538 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

1311 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

41326 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

1915 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

6274 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

1432 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

1796 Views

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

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