forum for week of Nov 7: kinds of apriori beliefs

I wouldn't say biological instincts are apriori belief. I think that society learned from evidencial experience how to satisfy their needs for hunger and thirst (what types of food to eat, e.g how to avoiding eating poisonous berries etc.). This notion can also be uptaken by sleep itself (through evidential experience one learns that 8 hours of sleep is the "optimal amount"-not a pregiven Getting back to the question at hand, I would argue that there is only in fact one source of aprori knowledge, and that is from the meaning of words itself. Mathematics, to an extent is reliant upon a specific language to which all must agree upon, and the terminology and the way this specific diction interacts. Terms like "equals", "addition" "divisible" are are reliant upon the language one uses to describe them but I think those terms cannot be accepted as a given, rather must have been created by someone (whoever was creating language) to order to aid the process of comparison and causation of numbers. Now of course one could argue that math is universally agreed upon and cannot be fundamentally challenged, but that doesn't solve the fact that math is understood the way it has been through the way one understands meaning in the words used to describe what is at hand. To this I believe that no there are not any others apriori beliefs that stem other than interaction of words...? (Deductive reasoning, analytical beliefs all come from the way words and their meanings interact).