e0d7c3ac79
This PR introduces date and time functionality to the Lean 4 Std. Breaking Changes: - `Lean.Data.Rat` is now `Std.Internal.Rat` because it's used by the DateTime library. --------- Co-authored-by: Markus Himmel <markus@himmel-villmar.de> Co-authored-by: Mac Malone <tydeu@hatpress.net>
21 lines
537 B
Text
21 lines
537 B
Text
import Std.Internal.Rat
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open Std.Internal
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open Lean
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#eval (15 : Rat) / 10
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#eval (15 : Rat) / 10 + 2
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#eval (15 : Rat) / 10 - 2
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#eval (-2 : Rat).inv
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#eval (2 : Rat).inv == (1 : Rat) / 2
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#eval (-2 : Rat).inv == (-1 : Rat) / 2
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#eval (4 : Rat)/9 * (3 : Rat)/10
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#eval (4 : Rat)/9 * (-3 : Rat)/10
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#eval (1 : Rat) < (-1 : Rat)
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#eval (-1 : Rat) < (1 : Rat)
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#eval (-1 : Rat)/2 < (1 : Rat)
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#eval (-1 : Rat) < 0
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#eval (-1 : Rat)/2 < 0
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#eval 0 < (-1 : Rat)/2
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#eval (1 : Rat)/3 < (1 : Rat)/2
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#eval (1 : Rat)/2 < (1 : Rat)/3
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-- TODO: add more tests
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