Definition talk:Magma

This sense of groupoid is obsolete because the term groupoid is commonly used for a category in which every arrow is iso.

The concept defined here should be called magma. See wikipedia.


 * Thx for that - I will amend appropriately. --prime mover 09:56, 30 May 2011 (CDT)


 * I also note that there is controversy in this area. From the wikipedia talk page, it appears that a fair number of mathematicians still prefer to use the term "groupoid", so referring to it as "obsolete" is jumping the gun.--prime mover 11:29, 30 May 2011 (CDT)


 * Yes, after reading wikipedia talk page I agree that "obsolete" was too strong. The change you have made looks just right to me.