max/lean4-htt
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions 2
27475 commits 1 branch 0 tags 5.3 GiB
Commit graph

3752 commits

Author SHA1 Message Date
Leonardo de Moura
4e261b15e5 fix: smart unfolding bug in over applications 2022-03-14 19:17:21 -07:00
Leonardo de Moura
eb7539ef77 fix: mkEqnTypes overapplied lhs in equational theorems 
This issue was exposed by the "Dependent de Bruijn indices" from CPDT.
 2022-03-14 17:42:21 -07:00
Leonardo de Moura
ef154ec0cf test: add TreeNode example using for in notation 2022-03-14 11:52:54 -07:00
Leonardo de Moura
fa0964c07e fix: preserve variable name at WF decreasing goals when function has only one non fixed argument 2022-03-13 13:20:07 -07:00
Leonardo de Moura
060be7e7ec fix: :: is infix right 2022-03-13 09:25:56 -07:00
Leonardo de Moura
672a889c83 test: add hlist pattern match example 2022-03-13 09:15:55 -07:00
Leonardo de Moura
5707cab7bf feat: improve #eval command 
Now, if it fails to synthesize the TC instance, it applies `whnf` and
tries again.
 2022-03-12 19:55:15 -08:00
Leonardo de Moura
3cd41acd14 test: HList with notation overloads 2022-03-12 19:47:57 -08:00
Leonardo de Moura
af5a24140a test: simple type checker at CPDT 2022-03-12 18:44:52 -08:00
Leonardo de Moura
7e3519a3a2 test: add CPDT first example 2022-03-12 17:06:20 -08:00
Leonardo de Moura
a6bfefe5bd fix: nasty performance problem at isDefEq 
This problem was originally exposed by the `Array.eraseIdxAux`.
 2022-03-12 10:44:43 -08:00
Leonardo de Moura
eddcedb58c fix: pattern normalization code 2022-03-12 06:07:04 -08:00
Leonardo de Moura
a4f47adf9e fix: normalize method at Match.lean 2022-03-11 18:19:37 -08:00
Leonardo de Moura
5caf1bc692 chore: style 
Use `·` instead of `.` for structuring tactics.
 2022-03-11 16:12:46 -08:00
Leonardo de Moura
ddf93d2f8a feat: support for arrow types in the dot notation 
cc @gebner
 2022-03-11 15:39:41 -08:00
Leonardo de Moura
712e9b7d45 chore: add custom induction principle for LazyList 2022-03-11 14:21:35 -08:00
Leonardo de Moura
7d5da95434 fix: remove unused hypotheses from conditional equation theorems 2022-03-11 14:10:57 -08:00
Leonardo de Moura
272dd5533f chore: style use · instead of . for lambda dot notation 
We are considering removing `.` as an alternative for `·` in the
lambda dot notation (e.g., `(·+·)`).
Reasons:
- `.` is not a perfect replacement for `·` (e.g., `(·.insert ·)`)
- `.` is too overloaded: `(f.x)` and `(f .x)` and `(f . x)`. We want to keep the first two.
 2022-03-11 07:49:03 -08:00
Leonardo de Moura
e1fa9c131c feat: inferring namespace from expected type a la Swift 
Now that `PatternVars.lean` has been redesigned, it is feasible to
implement issue #944.

closes #944
 2022-03-10 16:55:25 -08:00
Leonardo de Moura
3214a20d33 feat: allow overloaded notation in patterns 2022-03-10 12:51:34 -08:00
Leonardo de Moura
fddc8b06ac fix: missing case at getStuckMVar? 
Fix issue reported at
https://leanprover.zulipchat.com/#narrow/stream/270676-lean4/topic/'rewrite'.20failed.20but.20it.20should.20work/near/274870747
 2022-03-10 10:33:11 -08:00
Leonardo de Moura
164f07a5e5 feat: generalize Expr.abstractRange 
It now takes free variables **and** metavariables.
This is the first step to make `mkForallFVars` and `mkLambdaFVars`
more general.
 2022-03-08 18:19:17 -08:00
Leonardo de Moura
4ee131981d feat: in an inductive family the longest fixed prefix of indices is now promoted to parameters 
This modification is relevant for fixing regressions on recent changes
to the auto implicit behavior for inductive families.

The following declarations are now accepted:
```lean
inductive HasType : Fin n → Vector Ty n → Ty → Type where
  | stop : HasType 0 (ty :: ctx) ty
  | pop  : HasType k ctx ty → HasType k.succ (u :: ctx) ty

inductive Sublist : List α → List α → Prop
  | slnil : Sublist [] []
  | cons l₁ l₂ a : Sublist l₁ l₂ → Sublist l₁ (a :: l₂)
  | cons2 l₁ l₂ a : Sublist l₁ l₂ → Sublist (a :: l₁) (a :: l₂)

inductive Lst : Type u → Type u
  | nil  : Lst α
  | cons : α → Lst α → Lst α
```

TODO: universe inference for `inductive` should be improved. The
current approach is not good enough when we have auto implicits.

TODO: allow implicit fixed indices that do not depend on indices that
cannot be moved to become parameters.
 2022-03-08 17:56:34 -08:00
Leonardo de Moura
7b84b4cdaa fix: improve inductive indices elaboration 
TODO: convert fixed indices to parameters. Motivation: types such as
```lean
inductive Foo : List α → Type
  | mk : Foo []
```
Users should not need to write
```lean
inductive Foo {α} : List α → Type
  | mk : Foo []
```
 2022-03-08 17:48:46 -08:00
Sebastian Ullrich
f2d5470f19 feat: allow interpretation of constants initialized by native code 2022-03-07 10:59:49 +01:00
Leonardo de Moura
dddfb65660 test: use notation 2022-03-06 19:28:01 -08:00
Leonardo de Moura
7c5604996a test: unfoldr 2022-03-06 19:26:04 -08:00
Leonardo de Moura
10bccfe501 test: remove workaround 2022-03-06 13:58:42 -08:00
Leonardo de Moura
46d1111d3d fix: typo at unfoldBothDefEq 2022-03-06 13:54:42 -08:00
Leonardo de Moura
ff0f3bfc61 fix: interaction between overloaded notation and delayed coercions 
The new test exposes this issue.
 2022-03-06 09:49:15 -08:00
Leonardo de Moura
e9909020e8 test: add delay helper contructor 2022-03-06 08:08:51 -08:00
Leonardo de Moura
d3b2028a05 feat: add Fin.succ 2022-03-05 17:36:38 -08:00
Leonardo de Moura
3f9c854194 feat: auto local implicit chaining 2022-03-05 17:30:15 -08:00
Leonardo de Moura
22731c02b0 fix: auto implicit locals in inductive families 2022-03-05 15:47:20 -08:00
Leonardo de Moura
613cf19509 fix: discrimination trees and "stuck" terms 
See comments and new test.
 2022-03-05 15:12:20 -08:00
Leonardo de Moura
a670ed1e2d fix: use withoutErrToSorry at apply 
closes #1037
 2022-03-04 14:36:10 -08:00
Leonardo de Moura
8b248e2d8c feat: elaborate for h : x in xs do ... notation 2022-03-03 19:52:26 -08:00
Leonardo de Moura
b745c4f51a fix: recursive overapplication at WF/Fix.lean 2022-03-03 18:13:34 -08:00
Leonardo de Moura
4657d47c16 chore: fix tests 2022-03-03 18:13:34 -08:00
Leonardo de Moura
043d338271 feat: add getForbiddenByTrivialSizeOf 2022-03-03 11:12:32 -08:00
Leonardo de Moura
8dd76868ff test: plan for supporting combinators (e.g., List.foldl) in WF recursion 2022-03-02 15:18:25 -08:00
Leonardo de Moura
e091e7fb30 test: simplify proofs 2022-03-02 13:57:43 -08:00
Leonardo de Moura
4ba97c22ec test: proving properties of mutually defined functions 2022-03-02 13:40:19 -08:00
Leonardo de Moura
14ef4b4304 test: add WF test that exposes the need for better error messages 2022-03-02 12:47:19 -08:00
Leonardo de Moura
52403fca83 feat: add support for guessing (very) simple WF relations 
There are a lot of TODOs, but it is already useful for simple cases.

closes #847
 2022-03-02 11:52:00 -08:00
Leonardo de Moura
1e205d635e fix: bug at wfRecursion 
"After compilation" attributes were being applied to soon when we did
not need to generate auxiliary functions.
 2022-03-01 17:48:06 -08:00
Leonardo de Moura
2daf8d62ac test: LazyList with Thunk 2022-03-01 16:55:56 -08:00
Leonardo de Moura
4e310ac63d feat: improve SimpTheorem preprocessor 2022-02-28 18:27:36 -08:00
Leonardo de Moura
e455df9c95 fix: use a def-eq aware mapping at toLinearExpr 
The new test exposes the problem fixed by this commit.
In the termination proof we have two `sizeOf xs` terms that are not
syntactically identical (only definitional equal) because the
instances are different.
 2022-02-28 13:46:36 -08:00
Leonardo de Moura
c5fdd54cd8 feat: support for acyclicity at unifyEqs 
closes #1022
 2022-02-27 10:03:40 -08:00