Navigation Panel: (IMAGE)(IMAGE)(IMAGE)(IMAGE) (SWITCH TO TEXT-ONLY VERSION) (IMAGE)
(IMAGE) Go up to Classic Fallacies index
(IMAGE) Go down to first subsection This is Not the Fallacy
(IMAGE) Go forward to 1=2: A Proof using Complex Numbers
(SWITCH TO TEXT-ONLY VERSION) Switch to text-only version (no graphics)
(IMAGE) 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: (IMAGE)(IMAGE)(IMAGE)(IMAGE) (SWITCH TO TEXT-ONLY VERSION) (IMAGE)