[seqfan] Re: A000000

Robert Israel israel at math.ubc.ca
Wed Jun 16 21:31:47 CEST 2010

On Wed, 16 Jun 2010, N. J. A. Sloane wrote:

> PS and the past tense of "to prove" is "proved", not "proven".
>> conjectured to be empty or proven empty.
> Best regards
> 			 Neil

The past tense is "proved", but the past participle and attributive 
adjective can be either "proved" or "proven".  See e.g.

Robert Israel                                israel at math.ubc.ca
Department of Mathematics        http://www.math.ubc.ca/~israel 
University of British Columbia            Vancouver, BC, Canada

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