‘training’ as a countable noun

‘training’ is normally an uncountable noun, but in academia it is also used as a countable noun (e.g., “You need to complete these 5 District-mandated trainings by September 30.”), as a synonym for the longer expression ‘training course’. Merriam-Webster’s free online dictionary fails to note this sense in its entry for ‘training’.
keywords: errors and omissions, linguistics

lorem ipsum

Mathematical functions, such as f(x) = 5x + 3, can be viewed as stories. For example, ‘x = 4 implies f(x) = 23’ can be viewed as a sentence in the story of this function f. Therefore, since functions can be considered to be stories, graphs of functions can be considered as the precursor of the ‘shapes of stories’ thesis championed by Kurt Vonnegut.
keywords: development of an idea