Statement and Lean representation

The set of natural-number primes is infinite.
Nat.infinite_setOf_prime
{ p | Nat.Prime p }.Infinite

A Lean check concerns the formal statement. The match to the cited wording awaits independent review.

Evidence

The four dimensions below have distinct meanings and do not inherit one another's status.

Lean check
Upstream declaration pinned
Statement alignment
Possible match; unresolved
Independent reproduction
Not yet reproduced
Mathematical review
Independent review pending

Proof outline

Unbounded natural-number sets are infinite

  1. Use the unbounded-set formulation.
  2. Apply the pinned mathlib set-theoretic result.

This outline is source-linked and awaits independent mathematical review.

Cited passages

Several possible infinitude formulationsPrime numbers do not run out · lines 17–19Infinite-set formulationMathlib: infinite set of primes · lines 26–28