Re:Types versus sets (and what about categories?)
by yoneda on Friday September 01, 2023 @05:11AM
(#37348451)
The "obvious" observation from the article is:
> Obviously, λx.M should be seen as a sort of function
The fact that lambdas can be seen as a syntax for describing functions (or function-like things) is kind of obvious to anyone who knows basic programming language theory (and many software engineers who use lambdas when they map over a list, for example).
The sentence before it about β-reduction is describing the rule for how to call a function, which we learned in high school as "plug-and-chug".
I think the confusion here might just be that the syntax is unfamiliar. You have probably seen these concepts before.
> Obviously, λx.M should be seen as a sort of function
The fact that lambdas can be seen as a syntax for describing functions (or function-like things) is kind of obvious to anyone who knows basic programming language theory (and many software engineers who use lambdas when they map over a list, for example).
The sentence before it about β-reduction is describing the rule for how to call a function, which we learned in high school as "plug-and-chug".
I think the confusion here might just be that the syntax is unfamiliar. You have probably seen these concepts before.