Understanding Sequences with Finitely Many Terms of 1

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Homework Help Overview

The discussion revolves around the interpretation of a mathematical definition regarding sequences, specifically those that belong to set A, which includes sequences where all but finitely many terms are 1.

Discussion Character

  • Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants attempt to clarify the definition of set A, with some providing examples of sequences that fit or do not fit the criteria. There is also a focus on correcting misunderstandings regarding the phrasing of the definition.

Discussion Status

The discussion is active, with participants engaging in clarifying the meaning of the definition and addressing misconceptions. Some have expressed understanding after further examination of the statements involved.

Contextual Notes

Participants are navigating the nuances of mathematical language and definitions, which may lead to confusion. The discussion highlights the importance of precise wording in mathematical statements.

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Homework Statement


What does this mean:
Set A consists of those sequences all but finitely many of whose terms are 1.






The Attempt at a Solution


In set A every sequence constains 1 somewhere but only finitely many terms are 1.
 
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It means if a sequence is in A, only finitely many of its entries aren't '1'.

E.g. (1,0,1,2,1,1,1,1,1,1,...) is in A, but (1,1,0,0,0,0,0,...) and (0,2,4,6,...) aren't.
 
pivoxa15 said:

Homework Statement


What does this mean:
Set A consists of those sequences all but finitely many of whose terms are 1.






The Attempt at a Solution


In set A every sequence constains 1 somewhere but only finitely many terms are 1.

Your statement is pretty much the opposite of what you are given! The original statement is "all but finitely many terms are 1" while your statement says all but finitely many are 1.
 
HallsofIvy said:
Your statement is pretty much the opposite of what you are given! The original statement is "all but finitely many terms are 1" while your statement says all but finitely many are 1.

tricky, tricky.

Now I understand these statements. It occurs often in mathematics.
 

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