I want to know the answer to the following question:
What is 'haecceity'?
All the background I'm provided with is that "In his Harvard "Lectures on Pragmatism" (1903), Peirce enumerated what he called the "three cotary propositions of pragmatism" (L: cos, cotis whetstone), saying that they "put the edge on the maxim of pragmatism".". Is that enough to answer the question?