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[x] _: y
[x] __: yConstant Function
Rank Infinity -- operates on [x and] y as a whole -- WHY IS THIS IMPORTANT?
The value: Infinity (_) (or its negative—__), whatever [x and] y happen to be.
The argument y can therefore be any noun. Ditto x, if present.
_: and __: have sister-primitives 0:, 1:, 2:, 3:, ... 9: and _1:, _2:, _3:, ... _9:, returning the corresponding integers.
Related Primitives
Constant function (0:)