Response to Dave about Principal Ideals

6 thoughts
last posted Aug. 19, 2016, 3:46 a.m.

5 earlier thoughts


I love the idea of saying that, for example, "Vector Calculus is in the past light-cone of cosmology".

To more precisely relate his trichotomy to light-cones, I think you have:

  • subject A is in the past light-cone of subject B
  • subject A and B both have subject C in their past light-cone
  • subject A and subject B are space-like