Question about properties of sums and products

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    Properties Sums
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Discussion Overview

The discussion revolves around the validity of certain mathematical properties related to sums and products, as presented by the original poster. The inquiry includes whether these properties hold true and requests counterexamples if they are incorrect. The scope includes theoretical aspects of mathematics.

Discussion Character

  • Debate/contested
  • Mathematical reasoning

Main Points Raised

  • The original poster seeks confirmation on the truth of specific properties of sums and products, providing links to visual representations.
  • One participant requests clarification on the definitions of variables and the context in which the properties are being evaluated, asking whether the discussion pertains to real numbers or a general vector space.
  • Another participant notes that one of the proposed properties is not always true, providing an example involving sums of powers over the interval [0, 1].

Areas of Agreement / Disagreement

Participants do not appear to reach a consensus, as there are competing views regarding the validity of the properties in question, with at least one participant providing a counterexample to challenge the original claims.

Contextual Notes

There are limitations regarding the definitions of the variables involved and the specific mathematical context (e.g., whether the discussion is limited to real numbers or extends to other mathematical structures). The original poster's properties are not fully defined, leading to ambiguity in the discussion.

MAGNIBORO
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Hi and sorry for bad english.I want to know if these properties are truehttps://gyazo.com/88c471f4bb9989b67a390c372f2c72fe

and

https://gyazo.com/85f4110664db6831576012debaf3a778 I did not find these properties in any place.
so I guess it will be obvious or are incorrect,
if incorrect I would like to see counterexamples.
thanks
 
Last edited by a moderator:
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Can you write these properties using an "if ... then" structure and not use the word "so"?

Also, can you write basic definitions of ##a##, ##b##, ##f## and so on? Are we working in the real numbers? Or a general vector space? Or?
 
micromass said:
Can you write these properties using an "if ... then" structure and not use the word "so"?

Also, can you write basic definitions of ##a##, ##b##, ##f## and so on? Are we working in the real numbers? Or a general vector space? Or?
a and b are any whole numbers (or infinity) , f(i), g(i),t(i),b(i) are any functions of i
 
Last edited:
For the first case, it isn't always true.
The Sum of x between 1 and 0 is 1, and the sum of x^2 between 1 and 0 is also one. We can generalise this to x^n where n is real and not equal to 0, this would produce the same answer between [0,1]
 

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