Math Problem Statement

is ∃m ∈ N ∀n ∈ N : n ≤ m true?

Solution

The statement you're asking about is:

∃m ∈ N ∀n ∈ N: n ≤ m
which translates to:

"There exists an mm in the set of natural numbers NN such that for every nn in NN, nmn \leq m."

Understanding the Statement

  • mN∃m ∈ N: There exists some natural number mm.
  • nN∀n ∈ N: For every natural number nn.
  • nmn \leq m: nn is less than or equal to mm.

Is this True?

In the set of natural numbers N={1,2,3,}N = \{1, 2, 3, \dots \}, for any number mm that you might choose, there will always be a number nn larger than mm. For example, if you choose m=3m = 3, then n=4n = 4 would not satisfy nmn \leq m. In fact, the set of natural numbers is infinite, so for any natural number mm, there will always be numbers larger than mm.

Thus, the statement is false, because there is no maximum natural number mm that can satisfy nmn \leq m for all nNn \in N.

Conclusion

The statement is false because no such natural number mm exists that is greater than or equal to all other natural numbers.

Would you like a detailed explanation of why this is the case, or any clarification on specific parts?


Here are five related questions to deepen your understanding:

  1. What is the formal definition of the natural numbers NN?
  2. Can there be a largest number in a set that is infinite?
  3. How does this statement change if we consider a different number set, like the integers?
  4. What happens to the logic if we introduce inequalities like nmn \geq m?
  5. How do we prove a statement is false in mathematical logic?

Tip: In infinite sets, the concept of "maximum" is often non-existent unless specifically bounded.

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Math Problem Analysis

Mathematical Concepts

Set Theory
Natural Numbers
Quantifiers in Logic

Formulas

-

Theorems

Properties of Natural Numbers

Suitable Grade Level

Undergraduate level (Introduction to Logic and Set Theory)