## Wednesday, February 02, 2011

### the pigeοnhole principle is ubiqitious.

as an example of the pigeοnhole princιple today, i told my theory class that
"there is no injection from $\mathbb{N}_{26}$ into $\mathbb{N}_8$.

"many of you probably think that this is a strange example. it's not .. rather, it wasn't always strange. most of you probably have iPhοnes or BΙackberries or a phone that has a QWERΤY keyboard.

me, i have an old fashioned flip phone, and i suffer T9 faιl a lot .. i once tried to text someone a hug but gave them a 4th instead.
"

borrowed from d1m5um (so, not my photo)
a few chuckles ensued. (-: