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| NOVA show on Cave of Letters and relation to Jesus | 30 Nov 2004 06:26 GMT | 7 |
Yesterday I saw a interesting program of NOVA titled "Ancient Refuge in the Holy Land" What interests me is the ongoing theory I have about Jesus in that he was a revolter of Romans who married Mary Magdalene and had a son named Barrabas. I feel confident that within this 21st ...
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| Infinite number of people toss a coin infinite times | 29 Nov 2004 08:30 GMT | 61 |
An infinite number of people each toss a coin infinite times, can you guarantee a new sequence of heads and tails? Herc
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| New countable infiniity logic | 29 Nov 2004 01:53 GMT | 60 |
As all the programmers here know, the infinite list of all computable numbers UTM(n) neN produces all numbers with every combination of digits. You cannot defeat infinity. Say you have an *infinite* list of computable real numbers. Then Cantor comes along and shows an anti-diagonal ...
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| induction vs Cantor II | 28 Nov 2004 19:55 GMT | 2 |
Summary from the first thread: L_1 is a list of reals. This creates an implied mapping (injection) F_1 from the naturals to the reals. D_n is the Cantor number, CN (anti-diagonal number),
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| What does it mean in other words (arithmetic)? | 28 Nov 2004 15:34 GMT | 2 |
We're learing at Peano Arithmetic and in the definition of it we encounter the expression "the set of universal closures" (that happen to be the PA). What we don't understand is a very simple thing. What
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| Groups and transfinite induction | 27 Nov 2004 14:30 GMT | 7 |
I have some problem to solve following exercise: (G, . ) is an infinite group and f a function on G. Find g and h injective functions defined on G such as f(x) = g(x) . h(x) for all x in G. Any help will be much appreciated!
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| cont: example of an undecidable sentence | 27 Nov 2004 14:19 GMT | 1 |
(All this is for my independent study) Let phi be a FOL formula with one free variable. Let p be the Godel code of phi Let q be the Godel code of phi after its free variable is replaced with p
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| Null-Axiom Set Theory | 26 Nov 2004 20:42 GMT | 8 |
The idea of having no axioms is for several reasons. Primarily, it seemed intuitive that the sets, as soon as you define empty, or an ur-element or minimal element, exist, that from anything anything. That is to say, from any one thing any possible thing.
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| Quantum logic for non mathematicians | 26 Nov 2004 17:06 GMT | 1 |
I am a engineer and PhD student (signal processing and electrical) with a basic undergraduate background in Quantum Mechanics and almost no training in abstract algebra. I am searching for an introductory text to Quantum Logic (von Neumann QL not quantum computing QL) that
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| here we go again with India and Pakistan over Kashmir; we need a M.A.D. Fleet in place | 26 Nov 2004 09:12 GMT | 6 |
In the news tonight was word that the new Indian prime minister was attacked in Kashmir. Although it was brought under control, there is no time to waste. If we have outbreaks such as that of 2002 where Pakistan and India were
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| David Ullrich answer the questions please........... | 25 Nov 2004 22:21 GMT | 6 |
An infinite number of people each toss a coin infinite times. Can you guarantee a new sequence of heads and tails? A ____ You hand the sequence to me in a locked box and keep the key.
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| Cantor's fatal mistake a la Zenkin | 25 Nov 2004 22:01 GMT | 7 |
Any list of reals forms a countable set. For every such set, there exists a countable set of "Cantor" methods or "diagonal numbers" or "anti-diagonal numbers." (There's no consistency in what these things are called.)
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| I think logic is obsolete today . . . . . . | 25 Nov 2004 22:00 GMT | 11 |
We have computers and they can do all the logic stuff for us ...
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| Curry's paradox - (Google=Google?) | 25 Nov 2004 09:18 GMT | 7 |
Curry's paradox is negation-free; it may be generated irrespective of one's theory of negation. An intuitive version of the paradox runs as follows. Consider the following list of sentences, named ‘The List’: 1. Tasmanian devils have strong jaws.
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| Agree with Ghost or not? ANSWER THE QUESTION | 25 Nov 2004 05:31 GMT | 6 |
>>You haven't answered my question, an infinite number of people toss >>coins infinite times. Can you come up with a new sequence of Heads >>and Tails? -
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