| Thread | Last Post | Replies |
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| Nomenology: The study of names & personality | 29 Apr 2005 16:41 GMT | 1 |
Hi, my name is Jeremy. I am a Nomenologist, which is a person who studies names & its influences on personality. I have been studying this theory for over 10 years and ive as of late just started giving readings with the method ive created. By taking the first name OR the
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| Numerology is science, Cardinality is a myth | 29 Apr 2005 13:26 GMT | 32 |
and The Truman Show is True. and Bill Gates is the worlds most recognised BILLionaire, Lady Di died, HawKING is the smartest,
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| approaching a proof | 29 Apr 2005 10:05 GMT | 22 |
I'm not particularly sophisticated in mathematical logic, so this question may seem absurd, but suppose we have a theorem which we know is unprovable in some system. Is it possible that there is an infinite sequence of 'proofs' in that system that APPROACH a proof of the
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| Nature and Natural Numbers | 29 Apr 2005 06:20 GMT | 1 |
What are unnatural numbers?
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| Constructivists' stance on cardinality | 29 Apr 2005 06:06 GMT | 34 |
The apparent absense of a countable set of some data type does not imply the existence of a larger set. It may be the structure of the data type that it is 'unlistable', not its cardinality. The virtual quantitative notion of a larger
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| Relation between sets and their elements | 28 Apr 2005 19:45 GMT | 33 |
What is the relation between sets and their elements (provided, of course, they have any)? Is it the relation of identity or of parthood, or in some sense both of identity and of parthood?
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| What Logic Really Is | 28 Apr 2005 19:03 GMT | 17 |
Logic was really just an attempt to define a base of computing. They are really saying that given: A. A r.e. finite set of axioms P i.e. P(axiom). B. A recursive map Q to a finite r.e. set of theorems from any axiom or
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| Physical models of set theory | 28 Apr 2005 17:41 GMT | 15 |
I wonder whether the study of infinite sets is somehow different to all other mathematics, in that there can be no physical system that it can model. The motion of planets is modelled by calculus, sub-atomic particles is
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| Some Simple Questions | 28 Apr 2005 17:34 GMT | 131 |
1. If someone says "I have a system that produces X" and in their paper that introduces and explains the system there are no examples of an X that is produced, does that demonstrate that the system cannot produce X and the statement that it produces X is false?
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| Ancient Greeks of Euclid never used reductio ad absurdum; Infinitude of Primes is a direct proof | 28 Apr 2005 03:35 GMT | 11 |
The below is an old 1990s post of mine archived in File 106 of my website www.iw.net/~a_plutonium This exposition is not only a correction of one of mathematic's most
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| What is wrong with this argument? | 27 Apr 2005 22:32 GMT | 239 |
What is wrong with saying that God works in Mysterious ways?
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| proof by contradiction in Euclid's elements | 27 Apr 2005 21:41 GMT | 2 |
You don't have to go very far to find examples of proof by reductio ad absurdum in Euclid. Only up to book I, Prop. 6, as a matter of fact, which is presented below (as extracted from where we all extract our Euclid).
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| TRUE / FALSE / EITHER "I underestimate you" | 27 Apr 2005 08:58 GMT | 3 |
e.g. A You underestimate the powers of the force. B Yes I do. Can B be telling the truth? Why / why not?
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| representation and replacement | 27 Apr 2005 01:53 GMT | 2 |
Okay, suppose you have two objects, where one object A represents the other object B, and you can always obtain one object from the other. I would like to write A = B (to do replacements), but technically, they are not of the same type, so it doesn't seem like you can really say ...
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| Euclid's actual proof - have at it! | 26 Apr 2005 14:59 GMT | 15 |
I'm not sure if the actual proof is either 'direct' - i.e. by construction (correct meaning of 'direct'?) or 'indirect' - i.e. by contradiction (correct meaning of 'indirect'?). What do YOU think?
>Proposition 20 |