Navigation Panel: 

  Go up to Classic Fallacies index
  Go down to first subsection This is Not the Fallacy
  Go forward to 1=2: A Proof using Complex Numbers
  Switch to graphical version (better pictures & formulas)
  Go to University of Toronto Mathematics Network Home Page

1=2: A Proof using Beginning Algebra

The Fallacious Proof:

See if you can figure out in which step the fallacy lies. When you think you've figured it out, click on that step and the computer will tell you whether you are correct or not, and will give an additional explanation of why that step is or isn't valid.

See how many tries it takes you to correctly identify the fallacious step!


This page last updated: May 26, 1998
Original Web Site Creator / Mathematical Content Developer: Philip Spencer
Current Network Coordinator and Contact Person: Joel Chan - mathnet@math.toronto.edu

Navigation Panel: Up | Down to First Subsection | Forward | Graphical Version | U of T Math Network Home