Pascal's Rule/Mistake/Second Edition

Source Work

1997: David Wells: Curious and Interesting Numbers (2nd ed.):

The Dictionary
$35$


Mistake

From the rule for constructing the triangle it follows that
$\dbinom n m \ \ \dbinom n {m + 1} \ \ \dbinom {n + 1} {m + 1}$


Correction

The operators have been omitted.

It ought to be:

$\dbinom n m + \dbinom n {m + 1} = \dbinom {n + 1} {m + 1}$


Sources

  • 1997: David Wells: Curious and Interesting Numbers (2nd ed.) ... (previous) ... (next): $35$
This article is issued from ProofWiki. The text is available under Creative Commons Attribution-ShareAlike License unless otherwise noted. Additional terms may apply for the media files.