I've just starting to explore the Abhidhamma sangaha, and finding Bhikku Bodhi's Comprehensive Manual fabulous.
When I checked in Wikipedia for the Abhidhamma, I see there is a Theravada list with 52 mental formations, but that a Mahayana list has 51. The groupings and factors are a little different.
My question is, how is it that they are not one and the same list of mental factors?
Thanks in advance.