Olivia Caramello's website

 

Unifying theory

Controversy with category theorists

Michael Barr's response 

I report below Michael Barr’s response to my request for a clarification (in italic), followed by my reply to it.

First let me state that I have not in any way been aware of this controversy.  I have reached an age (78 in three weeks) at which it is extremely hard to read new material.  I stick pretty much to what I am working on currently and am involved with my fight with a referee who wants a proof or reference for every statement, no matter how trivial or well known.  I was favorably impressed by the talk you gave in our seminar a few years ago, but I did not follow it in any deep way.  In general I would say that any result that is "well-known folklore" should be published if for no other reason than that then it can be cited.  As an example, my referee wants a proof of the following: every space in the limit closure of the unit interval is compact Hausdorff. 

 

I wish I could help you, but I just cannot for the reason above.  I hope it is not an example of male chauvinism, but I cannot make that accusation without knowing more.

 

Best wishes,

 

Michael

 

Dear Professor Barr,

Many thanks for your response and your positive remark about my talk at McGill. I completely agree with your position on the matter of the publication of results that some experts might have known but not published. I should add that I consider the notion of “folk theorem” very ill-defined, and potentially dangerous, since it can be used by established people to prevent young researchers in a disadvantaged position from getting due credit for their discoveries. No serious scientist should claim credit for a result that he has not publicly written down (or publicly presented) anywhere, on the grounds that he “knew it”.

Best regards,

Olivia Caramello