Proving Simple Theorem: Homework Statement, Equations, and Attempt at Solution

  • Thread starter ainster31
  • Start date
  • Tags
    Theorem
In summary, the conversation is about a counter-example given for a problem where the statement -1 < -3/2 < -2 must be proven. The conversation concludes that the given counter-example is not valid because it does not follow the rule a < b, where a is to the left of b on a number line.
  • #1
ainster31
158
1

Homework Statement



Pz3gG0Y.png


Homework Equations





The Attempt at a Solution



$$Counter-example:\quad let\quad a=-1\quad and\quad b=-2.\\ \\ -1\quad <\quad \frac { -3 }{ 2 } <-2$$

I have to prove it but it seems like the question is wrong.
 
Physics news on Phys.org
  • #2
ainster31 said:

Homework Statement



Pz3gG0Y.png


Homework Equations





The Attempt at a Solution



$$Counter-example:\quad let\quad a=-1\quad and\quad b=-2.\\ \\ -1\quad <\quad \frac { -3 }{ 2 } <-2$$

I have to prove it but it seems like the question is wrong.

You need a<b. -1 isn't less than -2.
 
  • Like
Likes 1 person
  • #3
ainster31 said:

Homework Statement



Pz3gG0Y.png


Homework Equations





The Attempt at a Solution



$$Counter-example:\quad let\quad a=-1\quad and\quad b=-2.\\ \\ -1\quad <\quad \frac { -3 }{ 2 } <-2$$

I have to prove it but it seems like the question is wrong.

If you draw a number line, with positive numbers on the right and negative numbers on the left, the statement a < b means that 'a' lies to the left of 'b' on the number line. Is that the case for your 'a' and 'b'?
 

1. What is a simple theorem?

A simple theorem is a mathematical statement that has been proven to be true using logical reasoning and previously established principles or theorems.

2. What is the purpose of including a homework statement in a proof?

The homework statement provides context for the theorem and specifies the problem that needs to be solved. This helps the reader understand the relevance of the theorem and how it is applied.

3. Why are equations important in proving a theorem?

Equations are used to represent the relationships between different mathematical quantities in a concise and precise manner. In a proof, equations are essential in showing the logical steps and reasoning used to arrive at a solution.

4. What should be included in the "attempt at solution" section of a proof?

The attempt at solution should include the steps and thought process used to solve the problem, including any relevant equations, assumptions, or strategies. This section helps the reader understand the logic behind the solution and identify any errors.

5. How can I improve my skills in proving simple theorems?

Practicing regularly, familiarizing yourself with basic mathematical principles and theorems, and seeking feedback from others can all help improve your skills in proving simple theorems. It's also important to carefully read and understand the given statement and try to approach the problem from different angles.

Similar threads

  • Calculus and Beyond Homework Help
Replies
7
Views
557
  • Calculus and Beyond Homework Help
Replies
3
Views
494
  • Calculus and Beyond Homework Help
Replies
5
Views
2K
  • Calculus and Beyond Homework Help
Replies
3
Views
278
  • Calculus and Beyond Homework Help
Replies
6
Views
477
  • Calculus and Beyond Homework Help
Replies
4
Views
1K
  • Calculus and Beyond Homework Help
Replies
1
Views
705
  • Calculus and Beyond Homework Help
Replies
3
Views
813
  • Calculus and Beyond Homework Help
Replies
6
Views
1K
  • Calculus and Beyond Homework Help
Replies
1
Views
642
Back
Top