Expose the tautological answer in Erdős 633

[DomTheDeveloper]

Result

The literal declaration asks for a set of triangles characterized by

∀ n, IsCuttable n T → IsSquare n

With no restriction on the set-valued answer, choose the set comprehension of that property itself. The theorem then reduces to reflexivity.

Verification

Focused audit run 30209696453 passed every gate:

• standard copyright check;
• source scan rejecting proof holes and trust escapes;
• exact module compilation under the pinned Lean toolchain;
• theorem axiom audit with no sorryAx or compiler-trust dependency.

Qualification

This is a specification defect, not a classification of the triangles in simpler geometric terms.

This remains a draft pending canonical statement repair.

[github-actions]

👋 This is an automated welcome message. 🤖
Thanks for the contributions!

A few friendly reminders while the review gets started:

• Please take a look at the style guidelines,
  especially the conventions for references, categories, AMS tags, and answer(sorry).
• You can manage some PR labels by leaving a comment with +label-name or -label-name; for example, +awaiting-author or -awaiting-author.
• This repository is mainly for formalised statements. Proofs longer than about 25-50 lines are usually out of scope; longer proofs are welcome to be included/linked via the formal_proof mechanism.

Thanks again for helping improve Formal Conjectures.