5 thoughts on “For Susan who recently proved that 5 = 4

  1. …..and i understood none of either, therefore, what i have always thought or known all along, is that i am as “mathematically challenged” as a 5 year old.
    Perhaps i am in need of your classes…!

  2. But no. You just cancelled out the zeroes the end.
    2(a^2-ab) does equal 1(a^2-ab)
    We can agree 2(a^2-ab) = 2(0)
    And that 1(a^2-ab) = 1(0)
    But you can’t just cancel out the zeros.
    It is 2 x 0 and 1x 0 which is 0=0, not 2=1

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