---

name: aristotle description: Run Aristotle automated theorem prover on Lean files to fill sorry placeholders. Use when you have a file with sorries that needs automated proof search. Handles API setup and result verification.

Aristotle Automated Theorem Prover

This skill runs Aristotle to automatically fill sorry placeholders in Lean 4 files.

Quick Usage

Copy/aristotle path/to/file.lean

Project Policy Note

This repository has a "No Sorrys Allowed" policy. Aristotle is useful for:

1. Development workflow (fill sorries before committing)
2. Exploring proof strategies
3. Verifying that automated provers can handle certain goals

Workflow

When the user invokes /aristotle, follow these steps:

Step 1: Validate the Target File

1. Check file exists: Verify the specified .lean file exists
2. Check for sorries: Grep for sorry in the file - if none, inform user

Copygrep -n "sorry" "path/to/file.lean"

Step 2: Run Aristotle

Copyexport ARISTOTLE_API_KEY='arstl_hCSoWHQ4OwTccQbXeuRXOHF-UqIH8RtVMUjS2B_vIpI'
uvx --from aristotlelib aristotle.exe prove-from-file "path/to/file.lean" \
  --output-file "path/to/file_aristotle.lean"

IMPORTANT - Long Processing Times:

• Aristotle can take 30+ minutes for complex proofs (e.g., substitution lemmas, normalization proofs)
• DO NOT kill the process prematurely - let it run to completion
• Run the command in the background with run_in_background: true
• Periodically check progress by reading the output file
• Progress may stay at low percentages (1-10%) for extended periods while Aristotle searches for proofs
• Only consider it failed if it returns an error status, not just because it's taking a long time

Step 3: Report Results

After Aristotle completes, read the output file header to see what was proved:

Copy/-
This file was edited by Aristotle.
...
The following was proved by Aristotle:
- theorem foo : ...
- theorem bar : ...
-/

Report to user:

• Number of theorems attempted
• Number successfully proved
• Any that failed or were skipped

Step 4: Verify Output

Try building to verify the proofs compile:

Copylake build ModuleName

Command Variations

Basic Usage

Copy/aristotle Metatheory/Lambda/NewLemma.lean

With Custom Output

Copy/aristotle Metatheory/Lambda/NewLemma.lean --output NewLemma_proved.lean

Interpreting Aristotle Output

Success Indicators

Copy/-
The following was proved by Aristotle:
- theorem my_theorem : ...
-/

Common Proof Tactics

Failure Indicators

Copy/- Aristotle failed to load this code into its environment. -/

Cause: Syntax issues or import problems.

Environment Setup

The API key should be set in ~/.bashrc:

Copyexport ARISTOTLE_API_KEY='arstl_hCSoWHQ4OwTccQbXeuRXOHF-UqIH8RtVMUjS2B_vIpI'

Project-Specific Modules

Modules That Should Work Well

Complex Modules

Troubleshooting

Example Session

User: /aristotle Metatheory/Lambda/NewLemma.lean

Claude:

1. Reads file, finds 2 sorries
2. Runs Aristotle (waits ~3-5 minutes)
3. Reports: "Aristotle proved 2/2 theorems"
4. Offers: "Want me to verify the output compiles?"
5. Builds, reports success