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In reply to the discussion: If you're having math problems, I feel bad for you, son... [View all]Jim__
(15,248 posts)12. As simply as it can be put, your statement is in direct contradiction to a Zermelo-Fraenkel axiom.
You know, Zermelo-Fraenkel:
In mathematics, ZermeloFraenkel set theory with the axiom of choice, named after mathematicians Ernst Zermelo and Abraham Fraenkel and commonly abbreviated ZFC, is one of several axiomatic systems that were proposed in the early twentieth century to formulate a theory of sets without the paradoxes of naive set theory such as Russell's paradox. Specifically, ZFC does not allow unrestricted comprehension. Today ZFC is the standard form of axiomatic set theory and as such is the most common foundation of mathematics.
From your last post:
But lets suppose instead, my integer is defined as
m = 1+1+1+... (to infinity)
can you add 1 to this infinitely long integer and make it larger? Its value is already infinite. Can you get a larger number with infinity plus 1? No.
m = 1+1+1+... (to infinity)
can you add 1 to this infinitely long integer and make it larger? Its value is already infinite. Can you get a larger number with infinity plus 1? No.
You don't understand the mathematical concept of infinity. Yes, you can always add 1 to an integer. The Zermelo-Fraenkel Axiom of Infinity:
Let S(x) abbreviate x ∪ {x}, where x is some set. Then there exists a set X such that the empty set ∅ is a member of X and, whenever a set y is a member of X, then S(y) is also a member of X.
∃ X ( ∅ ∊ X ∧ ∀ y ( y ∊ X => S(y) ∊ X))
∃ X ( ∅ ∊ X ∧ ∀ y ( y ∊ X => S(y) ∊ X))
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Question for math teacher - Please. At the end of the year I have 100,000 Pesos...
wake.up.america
Feb 2013
#43
A set of numbers is countable if it has the same cardinality as some subset of the natural numbers.
Jim__
Mar 2012
#4
"there do not exist 2 integers, say n and m, such that pi can be written as n/m"
napoleon_in_rags
Mar 2012
#5
"... you know Z plus all integers of infinite length would probably have the same cardinality as R."
Jim__
Mar 2012
#7
As simply as it can be put, your statement is in direct contradiction to a Zermelo-Fraenkel axiom.
Jim__
Mar 2012
#12
Yeah, it guarantees the size N is infinite, not that any number in N is infinite.
napoleon_in_rags
Apr 2012
#20
I'm just incredibly glad to hear these people seeing the holes in set theory.
napoleon_in_rags
Apr 2012
#39