[EM] One more correction

[Forest Simmons]

The last paragraph of my previous message should have said

Remember the symmetric completion and reverse cancellation are not part of the 
sprucing up process; they are only an assumption making possible two 
dimensional geometrical analysis of spruced up methods that already happen to 
satisfy the Symmetric Completion and Reverse Cancellation properties.

[In the corrected version the word "process" replaces the word "property" 
in the second line.]

Forest