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Klean: implement ^%Int and rename generated abs to kabs #4836

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Merged
merged 5 commits into from
Jun 23, 2025
Merged

Klean: implement ^%Int and rename generated abs to kabs #4836

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3c6dea2
`k2lean4.py`: exclude `^%Int` from function generation
JuanCoRo Jun 21, 2025
95c2ea5
`k2lean4.py`: override `abs` to `kabs` to not collide with mathlib
JuanCoRo Jun 21, 2025
75af0eb
`Prelude.lean`: group arguments for `_modInt_`
JuanCoRo Jun 21, 2025
625e52f
`Prelude.lean`: add `_^%Int__` implementation
JuanCoRo Jun 21, 2025
ca708b8
Merge remote-tracking branch 'origin/develop' into klean-abs-powmod
JuanCoRo Jun 21, 2025
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2 changes: 2 additions & 0 deletions pyk/src/pyk/klean/k2lean4.py
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Original file line number Diff line number Diff line change
Expand Up @@ -67,6 +67,7 @@
"Lbl'UndsStar'Int'Unds'", # *Int
"Lbl'UndsSlsh'Int'Unds'", # /Int
"Lbl'Unds'modInt'Unds'", # modInt
"Lbl'UndsXor-Perc'Int'UndsUnds'", # ^%Int
"LblmaxInt'LParUndsCommUndsRParUnds'INT-COMMON'Unds'Int'Unds'Int'Unds'Int", # maxInt
"Lbl'Tild'Int'Unds'", # ~Int
"Lbl'Unds-LT-Eqls'Int'Unds'", # <=Int
Expand All @@ -87,6 +88,7 @@

_SYMBOL_OVERRIDES: Final = {
'Lblite': 'kite',
'Lblabs': 'kabs',
}


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7 changes: 6 additions & 1 deletion ...ean/template/{{ cookiecutter.package_name }}/{{ cookiecutter.library_name }}/Prelude.lean
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Expand Up @@ -241,8 +241,13 @@ def «_-Int_» (x0 x1 : SortInt) : Option SortInt := some (x0 - x1)
def «_*Int_» (x0 x1 : SortInt) : Option SortInt := some (x0 * x1)
def «_/Int_» (x0 x1 : SortInt) : Option SortInt :=
ite (x1 == 0) none (Int.tdiv x0 x1)
def _modInt_ (x0 : SortInt) (x1 : SortInt) : Option SortInt :=
def _modInt_ (x0 x1 : SortInt) : Option SortInt :=
ite (x1 == 0) none (Int.emod x0 x1)
def «_^%Int__» (x0 x1 x2 : SortInt) : Option SortInt :=
if x2 == 0 then none else
match x1 with -- TODO: Revisit this implementation
| .ofNat n => some (Int.emod (Int.pow x0 n) x2)
| _ => none
def «maxInt(_,_)_INT-COMMON_Int_Int_Int» (x0 x1 : SortInt) :=
some (ite (x0 < x1) x1 x0)
def «log2Int(_)_INT-COMMON_Int_Int» (x0 : SortInt) : Option SortInt :=
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