I think there is a small typo on Volume IV Boolean Algebra, Boolean Rules for simplification. About a quarter of the way down the line "The next rule looks similar to the first on shown in this section, but is actually quite different and requires a more clever proof:" Says "first on" when probably meant "first one".

 

johndb,

Thanks for pointing out this correction. It has been entered in the copy at ibiblio.

D. Crunkilton

 

Thanks johndb and Dennis, the correction is now on AAC.

Dave