[r-t] parity

[Michael Schulte]

--- Edward W Martin <martinew at comcast.net> wrote:
> With lines, join up 1 to 1; 2 to 2 etc and when finished, count up how many 
> intersections. If odd then the parity = odd if even then parity = even
> mew

Very clever! I suppose one has to be careful that only two lines cross at any given point.
 
> PS we are off to Tennessee (Nashville) for 4 days but I think this is still 
> quite a bike-ride to Sewanee

Only about ninety miles, and up a mountain at the end!

Mike

====
Mike Schulte
Sewanee, Tennessee, USA