What is the correct term(s) for different types that contain exactly the same information? For example (F#):
type Type1 = (int * string) type Type2 = (string * int)
When describing that these types can contain exactly the same information, I could say that
Type2 are ______. Which word(s) could I use?
And is there a corresponding term for types that are similar, but not exactly so? For example:
type Type3 = Map<string, int> type Type4 = (string * int) list
There is a “lossless” mapping from
Type4, but not the other way around (a
Map can only contain unique keys, whereas
Type4, being a list, has no such restriction).
I’ll accept an answer that provides relevant terms along with some credibly sourced definition (or convinces me that there are no relevant terms).
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