Points in a Line, Plane & Space: Cardinality Comparison

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SUMMARY

The discussion centers on the cardinality of points in a line, plane, and space, establishing that all three have the same cardinal number, which is the cardinality of the continuum. The conversation also raises a question regarding sets with cardinal numbers greater than the continuum, prompting further exploration into the concept of cardinality. Participants emphasize the importance of defining "same number" in the context of set theory to clarify these concepts.

PREREQUISITES
  • Understanding of set theory and cardinality
  • Familiarity with the concept of the continuum in mathematics
  • Basic knowledge of mathematical definitions and notation
  • Awareness of different types of infinities, such as countable and uncountable sets
NEXT STEPS
  • Research the concept of cardinality in set theory
  • Explore the continuum hypothesis and its implications
  • Learn about different types of infinities and their properties
  • Investigate sets with cardinalities greater than the continuum, such as the power set of the continuum
USEFUL FOR

Mathematicians, students of mathematics, and anyone interested in advanced concepts of set theory and cardinality.

mprm86
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Show that they are the same number of points in a line, in a plane and in the space.
I have one more question: Which set has a cardinal number greater than the continuum. Why?

Thanks in advance.
 
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Sounds like homework. Have you had any thoughts on it? Know any useful facts about cardinality?
 
Start by writing out the DEFINITION of "same number"!
 

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