Quick notation+statement verification

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SUMMARY

The discussion centers on the mathematical statement regarding the existence of an epsilon (\(\varepsilon\)) that satisfies certain conditions for a sequence of rational numbers (\(k_1, k_2, \ldots, k_n\)). Participants debate the clarity and validity of the statement, particularly the necessity of defining the terms involved, such as the sequence \(k_n\). The simplified version of the statement is presented, emphasizing the relationship between the rational numbers and the epsilon condition. Ultimately, the question posed is whether this statement is true or false.

PREREQUISITES
  • Understanding of set theory and notation in mathematics
  • Familiarity with rational numbers (\(\mathbb{Q}\))
  • Knowledge of limits and epsilon-delta definitions in calculus
  • Basic comprehension of sequences and their properties
NEXT STEPS
  • Research the properties of rational numbers and their density in the real numbers
  • Study the epsilon-delta definition of limits in calculus
  • Explore set theory concepts, particularly subsets and their implications
  • Investigate the implications of sequences in mathematical analysis
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Mathematicians, students studying advanced calculus or real analysis, and anyone interested in the foundations of mathematical logic and set theory.

bomba923
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Do you agree that, [tex]\forall k \in \left[ {a,b} \right]\;{\text{where}}\;\left( {a,b,k} \right) \in \mathbb{Q}^3[/tex],
[tex]\exists \,\varepsilon > 0{\text{ such that}}\;\forall n \in \mathbb{N},\;\left( {\left\{ {k_1 ,k_2 , \ldots ,k_n } \right\} - a} \right) \subseteq \varepsilon \left\{ {0,1,2, \ldots ,\left\lfloor {\frac{{b - a}}{\varepsilon }} \right\rfloor } \right\}[/tex]

|*Is this True or False ?
 
Last edited:
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i don't think it makes sense until you say what the k_n are. don't bother with the symbols just write it in english.
 
Sorry:redface:; the whole mess seems to simplify down to this statement:

[tex]\forall \left\{ {k_1 ,k_2 , \ldots ,k_n } \right\} \subset \mathbb{Q}\;{\text{where }}k_1 < k_2 < \ldots < k_n ,[/tex]
[tex]\exists \,\varepsilon > 0\;{\text{such that}}\;\forall n \in \mathbb{N},\;\left\{ {k_1 ,k_2 , \ldots ,k_n } \right\} \subseteq \varepsilon \left\{ {0,1,2, \ldots ,\left\lfloor {\frac{{k_n - k_1 }}<br /> {\varepsilon }} \right\rfloor } \right\}[/tex]

*|is this True or False?
 
Last edited:

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