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500 commits

Author SHA1 Message Date
Leonardo de Moura
1caff852fb chore: remove getOp functions 2022-07-09 16:09:28 -07:00
Leonardo de Moura
36ebccb822 chore: fix tests 2022-07-09 15:59:44 -07:00
Leonardo de Moura
e4b358a01e refactor: prepare to elaborate a[i] notation using typeclasses 2022-07-09 15:24:22 -07:00
Leonardo de Moura
4c707d3b3c feat: use binop% to elaborate %-applications 
Motivation: make sure the behavior is consistent with other arithmetic
operators.

This commit also removes the instance
```
instance : HMod (Fin n) Nat (Fin n) where
  hMod := Fin.modn
```
because we have a coercion from `Fin n` to `Nat`.
Thus, given `a : Fin n` and `b : Nat`, `a % b` is ambiguous.
 2022-07-09 14:38:35 -07:00
Leonardo de Moura
757171db1f feat: add String.get! and s[i]! notation for String 2022-07-03 14:59:44 -07:00
Leonardo de Moura
5e3a3a6c21 chore: remove notation a[i,h] for a[⟨i, h⟩] 2022-07-03 06:24:26 -07:00
Leonardo de Moura
54c60d4c2d feat: a[i] and a[i]! notation for Subarrays 2022-07-02 15:54:34 -07:00
Leonardo de Moura
a2456c3a0f feat: add notation a[i, h] for a[⟨i, h⟩] 2022-07-02 15:50:49 -07:00
Leonardo de Moura
3f3cd22366 feat: add Array.getOp! and Array.getOp? 
Add warning when `Array.getOp` is used. TODO: replace `Array.getOp`
with safe version
 2022-07-02 10:06:05 -07:00
Leonardo de Moura
e8935d996b chore: String.get?, String.getOp?, and remove String.getOp 2022-07-02 09:59:04 -07:00
Leonardo de Moura
5294a39ec4 feat: add Float.ceil, Float.floor, and Float.round 2022-07-01 06:27:30 -07:00
Leonardo de Moura
34dc2572f3 fix: make sure OfScientific Float instance is never unfolded during type class resolution 
This commit fixes issue reported at
https://leanprover.zulipchat.com/#narrow/stream/270676-lean4/topic/deterministic.20timeout/near/287654818

Type class resolution was diverging when trying to synthesize
```lean
 HSub (optParam Float 0.0) (optParam Float 1.0) ?m.472
```
and Lean was diverging while unfolding
```lean
 instance : OfScientific Float where
   ofScientific m s e :=
     if s then
       let s := 64 - m.log2 -- ensure we have 64 bits of mantissa left after division
       let m := (m <<< (3 * e + s)) / 5^e
       Float.ofBinaryScientific m (-4 * e - s)
     else
       Float.ofBinaryScientific (m * 5^e) e
```
was being unfolded.

Anothe potential solution for the problem above is to erase the
`optParam` annotations before performing type class resolution.
 2022-06-27 17:40:34 -07:00
Sebastian Ullrich
f90e4ae30c feat: more TSyntax API & coercions 2022-06-27 22:37:02 +02:00
Leonardo de Moura
6ebae968a7 feat: use IO.getRandomBytes to initialize random seed 
See https://github.com/leanprover/lean4-samples/pull/2
 2022-06-27 13:01:20 -07:00
Sebastian Ullrich
5a0c3b8d80 fix: String.isNat 2022-06-25 18:42:08 +02:00
Leonardo de Moura
220d2e3816 feat: add filterTR and [csimp] theorem 2022-06-24 06:40:38 -07:00
E.W.Ayers
a7c33a963f doc: docstrings for List.isPrefixOf 2022-06-17 17:47:51 -07:00
François G. Dorais
bc206b2992 fix: LawfulBEq class 
make arguments implicit and protect `LawfulBEq.rfl`
 2022-06-16 15:33:32 -07:00
Leonardo de Moura
f6d1e48cb8 fix: constant => opaque issues 2022-06-14 17:19:54 -07:00
Leonardo de Moura
02c4e548df feat: replace constant with opaque 2022-06-14 17:02:59 -07:00
Wojciech Nawrocki
46257dfb0e feat: show bitwise terminates 2022-06-12 14:01:05 -07:00
Wojciech Nawrocki
4d05803782 feat: WF lemma for Nat division 2022-06-12 14:01:05 -07:00
Wojciech Nawrocki
ff15e31e85 refactor: remove redundant theorem 2022-06-12 14:01:05 -07:00
Leonardo de Moura
041827bed5 chore: unused variables 2022-06-07 17:54:10 -07:00
Leonardo de Moura
c2ddebc193 chore: unused variables 2022-06-07 16:47:04 -07:00
Sebastian Ullrich
897a5de6ac chore: revert some questionable signature changes 2022-06-07 16:37:45 -07:00
Sebastian Ullrich
fb2a2b3de2 fix: fixup previous commit 2022-06-07 16:37:45 -07:00
Sebastian Ullrich
ae7b895f7a refactor: unname some unused variables 2022-06-07 16:37:45 -07:00
Leonardo de Moura
34bbe5d12c feat: add simp theorem List.of_toArray_eq_toArray (as bs : List α) : (as.toArray = bs.toArray) = (as = bs) := by 2022-05-27 18:26:48 -07:00
Sebastian Ullrich
1d44c30b3f refactor: simplify log2 termination proof 2022-05-18 10:20:36 +02:00
François G. Dorais
155b41937a
fix: remove unnecessary hypothesis (#1144) 2022-05-07 15:39:37 -07:00
Leonardo de Moura
73cb952275 feat: add Hashable (Array α) instance 2022-05-07 15:01:32 -07:00
Leonardo de Moura
c65537aea5 feat: Option is a Monad again 
TODO: remove `OptionM` after update stage0

see: https://leanprover.zulipchat.com/#narrow/stream/270676-lean4/topic/Do.20we.20still.20need.20OptionM.3F/near/279761084
 2022-05-04 15:27:42 -07:00
Leonardo de Moura
24417ed466 feat: size, get, get!, getD, and getOp for Subarray 2022-04-29 09:55:45 -07:00
Leonardo de Moura
cae59c6916 chore: remove staging workarounds 2022-04-26 08:23:43 -07:00
Leonardo de Moura
6af1da450e feat: disable only eta for classes during TC resolution 
closes #1123
 2022-04-26 08:20:39 -07:00
Leonardo de Moura
4ab57475a0 chore: simplify proofs 2022-04-23 12:47:10 -07:00
Leonardo de Moura
a82abee1b2 feat: sum of monomials normal form by reflection 2022-04-22 18:51:48 -07:00
Leonardo de Moura
09dfd97593 chore: remove temporary workaround 2022-04-21 16:29:08 -07:00
Leonardo de Moura
57c3114875 fix: simpAll and tests 
We need another `update stage0` to remove workaround at `AC.lean`
 2022-04-21 15:00:07 -07:00
Leonardo de Moura
2a36ae4627 feat: add List.le_antisymm 2022-04-20 16:31:25 -07:00
Leonardo de Moura
bb3fc358c9 feat: add LawfulBEq Int instance 2022-04-20 14:52:41 -07:00
Leonardo de Moura
e3dcce5320 chore: remove temporary workarounds 2022-04-09 12:13:37 -07:00
Leonardo de Moura
628e33bf8a feat: activate new rfl tactic implementation 2022-04-09 12:01:56 -07:00
Leonardo de Moura
de2e2447d2 chore: style 2022-04-07 17:35:05 -07:00
Leonardo de Moura
9d55d7bf9e feat: add helper tactic for applying List.sizeOf_lt_of_mem in termination proofs 2022-04-02 18:38:55 -07:00
Leonardo de Moura
64cfbc1ae3 feat: add helper tactic for applying sizeOf (a.get i) < sizeOf a automatically in termination proofs 2022-04-02 18:29:41 -07:00
Leonardo de Moura
562af50191 feat: add ForIn' instance for Range 2022-04-02 18:22:21 -07:00
Leonardo de Moura
03ec8cb30b feat: missing sizeOf theorems for Array.get and List.get 2022-04-02 16:04:46 -07:00
Leonardo de Moura
8636594dac chore: add [simp] to Nat.lt_irrefl 2022-04-01 18:50:32 -07:00