We wish to show f is continuous. Arbitrate epsilon greater than zero...

Early in the morning they shouldered light packs, took their rifles, crossed the big draw, and entered the timber where was the deadfall.

Who-so that buildeth his hous al of salwes, And priketh his blinde hors over the falwes, And suffreth his wyf to go seken halwes, Is worthy to been hanged on the galwes!

At seven o'clock, He said to get in touch with him again at the bottom of the hour, so I called him back at seven thirty.