Skip to content

GitLab

  • Projects
  • Groups
  • Snippets
  • Help
    • Loading...
  • Help
    • Help
    • Support
    • Community forum
    • Submit feedback
    • Contribute to GitLab
  • Sign in / Register
I
Iris
  • Project overview
    • Project overview
    • Details
    • Activity
    • Releases
  • Repository
    • Repository
    • Files
    • Commits
    • Branches
    • Tags
    • Contributors
    • Graph
    • Compare
  • Issues 116
    • Issues 116
    • List
    • Boards
    • Labels
    • Service Desk
    • Milestones
  • Merge Requests 22
    • Merge Requests 22
  • CI / CD
    • CI / CD
    • Pipelines
    • Jobs
    • Schedules
  • Operations
    • Operations
    • Incidents
    • Environments
  • Analytics
    • Analytics
    • CI / CD
    • Repository
    • Value Stream
  • Wiki
    • Wiki
  • Members
    • Members
  • Collapse sidebar
  • Activity
  • Graph
  • Create a new issue
  • Jobs
  • Commits
  • Issue Boards
  • Iris
  • Iris
  • Issues
  • #331

Closed
Open
Opened Jun 29, 2020 by Paolo G. Giarrusso@BlaisorbladeContributor

simpl breaks error checking of `iNext (S i)`

I'd expect iNext (S i) to introduce exactly S i later, and fail otherwise. However, after e.g. simpl turns ▷^(S i) P into ▷ ▷^i P, that will sometimes introduce one later, as shown below.

From iris.proofmode Require Import tactics.

Lemma foo i {PROP} P : P ⊢@{PROP} ▷^(S i) P.
Proof.
  iIntros "H".
  Fail iNext 2.
  iNext (S i).
  Fail iNext i.
  Fail iNext.
  iExact "H".
  Restart.

  iIntros "H /=".
  Fail iNext 2.
  iNext (S i).
  iNext i. (* !!! *)
  Abort.

Iris version

$ opam show coq-iris -f version
dev.2020-05-24.2.af5e50e7

with Coq 8.11.1.

Edited Jun 29, 2020 by Paolo G. Giarrusso
Assignee
Assign to
None
Milestone
None
Assign milestone
Time tracking
None
Due date
None
Reference: iris/iris#331