JetBrains/Arend

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The Arend Proof Assistant

Stars: 756
Forks: 31
Open beginner issues: 0
Indexed issues: 49

Dominant language: Java
License: Apache-2.0
Last GitHub push: Nov 20, 2024
Latest indexed: Sep 18, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: No beginner labels indexed
PR merge metrics: No merged PRs in 30d

Open All

49 open issues indexed

Allow to omit the signature of functions defined in instances Open

classes

JetBrains/Arend#126 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Allow libraries without sources Open

compiled library

JetBrains/Arend#127 · 0 comments · 2 reactions · 0 assignees · Indexed Sep 18, 2026
Custom pattern matching principles Open

feature

JetBrains/Arend#128 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Local functions Open

feature

JetBrains/Arend#129 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Decompiling Arend from `.arc`? Open

feature

JetBrains/Arend#134 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Allow functions as classifying expressions Open

classes

JetBrains/Arend#137 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
More general classifying expressions Open

classes

JetBrains/Arend#138 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 18, 2026
Reverse coerce Open

classes coercion feature

JetBrains/Arend#140 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Implement multi-parameter type class Open

feature

JetBrains/Arend#144 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Allow \cons defined by pattern matching Open

feature

JetBrains/Arend#187 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Bug with resolving of namespace commands Open

bug name-resolver

JetBrains/Arend#189 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Implement an HTML pretty printer Open

pretty-printer

JetBrains/Arend#192 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Defined constructors enhancements Open

feature

JetBrains/Arend#214 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Pretty printer for let under WHNF Open

pretty-printer

JetBrains/Arend#216 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Coerce for functions and path types Open

coercion

JetBrains/Arend#221 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
IAE in IDE Open

bug

JetBrains/Arend#223 · 6 comments · 0 reactions · 1 assignee · Indexed Sep 18, 2026
Be kinder to goals in more places Open

goals

JetBrains/Arend#226 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Evaluator for closed expressions Open

feature

JetBrains/Arend#228 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Support `:set +s` in ghci. Open

repl

JetBrains/Arend#234 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Is that a problem of variable inference? Open

question

JetBrains/Arend#236 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
NPE in Arend serialization Open

bug caching

JetBrains/Arend#238 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Instantiation of inference variables might be too eager Open

metavar

JetBrains/Arend#244 · 0 comments · 1 reaction · 1 assignee · Indexed Sep 18, 2026
ST monad Open

feature prelude

JetBrains/Arend#250 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
ISE in `ExpressionSerialization` Open

bug caching

JetBrains/Arend#253 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Modifiable source library Open

library repl

JetBrains/Arend#258 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Address Xlint:unchecked? Open

cleanup

JetBrains/Arend#260 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Infer (class of (parameters of (functions defined in instances))) Open

classes

JetBrains/Arend#265 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Coinductive types (guardedness) & copatterns support? Open

feature

JetBrains/Arend#267 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Equation solver behavior inconsistency Open

level

JetBrains/Arend#268 · 2 comments · 0 reactions · 1 assignee · Indexed Sep 18, 2026
Unnamed variables in error messages Open

pretty-printer

JetBrains/Arend#269 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
ISE in CorrespondedSubExprVisitor Open

bug subexpr

JetBrains/Arend#278 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Arend forces splitting on unnecessary variables Open

pattern-match

JetBrains/Arend#286 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Conditions referring to the current constructor? Open

JetBrains/Arend#288 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
\let definitions in REPL Open

repl

JetBrains/Arend#289 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Import existing imports in REPL Open

repl

JetBrains/Arend#291 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 18, 2026
Add documentation comments to Prelude.ard Open

JetBrains/Arend#293 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 18, 2026
NPE in typechecking Open

bug

JetBrains/Arend#296 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Dynamic definitions for `\data` Open

JetBrains/Arend#297 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Allow more unicode symbols in aliases Open

JetBrains/Arend#299 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
PrettyPrintOptions button is greyed out Open

bug error-message

JetBrains/Arend#331 · 0 comments · 1 reaction · 1 assignee · Indexed Sep 18, 2026
Improve console REPL completion Open

repl

JetBrains/Arend#334 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Allow multiline input in REPL Open

repl

JetBrains/Arend#335 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
:lib command not working as expected. Open

repl

JetBrains/Arend#336 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 18, 2026
No error reported about wrong use of `\use \coerce` Open

bug

JetBrains/Arend#342 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 18, 2026
Tutorial for "Console Application" Turning Up Error Open

JetBrains/Arend#343 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
ConcurrentModificationException in CachingDefinitionRenamer Open

JetBrains/Arend#346 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
ClassCastException Open

JetBrains/Arend#347 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Typechecker loops Open

JetBrains/Arend#352 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 18, 2026
Feature request: modalities Open

JetBrains/Arend#354 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026

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