• Error in reasoning that results in an invalid Mathematical Argument
  • 3 common fallacies causes
    1. Using Ambiguous Premises
    2. Circular Reasoning (Assuming what is to be proved without having derived it from the Premise)
    3. Jumping to a Conclusion

Common Errors

Converse Error

  • Given a b is true & b is true, we conclude a is true
  • Going against Modus Tollens

Inverse Error

  • Given a b is true & ~a is true, we conclude ~b is true
  • Going against Vacuously True