Issues

• Property Suggestion: Punctiform

  property
  pi-base/data#1844 · Filter by author Moniker1998 opened on Oct 1, 2026
  5

• Space Suggestion: Dijkstra's connected space

  space
  pi-base/data#1843 · Filter by author Moniker1998 opened on Sep 29, 2026
  1

• Property Suggestion: Has an explosion point

  property
  pi-base/data#1842 · Filter by author Moniker1998 opened on Sep 29, 2026
  4

• Property Suggestion: T_D

  property
  pi-base/data#1836 · Filter by author artemetra opened on Sep 4, 2026
  3

• Suggested space renaming: the "Long circle" -> "Half-long Circle" + Space suggestion: The Long Circle

  pi-base/data#1833 · Filter by author jtaylor-maths opened on Aug 29, 2026
  2

• Meta-properties: preservation under certain maps

  metaproperty
  pi-base/data#1817 · Filter by author prabau opened on Jul 10, 2026
  1

• Preview: New website at https://topology.pi-base.workers.dev/

  pi-base/data#1816 · Filter by author StevenClontz opened on Jul 6, 2026
  6

• New website to find remaining unknown A => B implications

  meta
  pi-base/data#1815 · Filter by author felixpernegger opened on Jul 3, 2026
  9

• Space Suggestion: *some* space which is not P164 (|X| < meas. cardinal)

  space
  pi-base/data#1814 · Filter by author felixpernegger opened on Jul 3, 2026
  9

• Space Suggestion: Ostaszewski's Space

  space
  pi-base/data#1811 · Filter by author JSMassmann opened on Jun 30, 2026
  2

• Mark non-unique / "ill-defined" spaces

  metaspace
  pi-base/data#1804 · Filter by author felixpernegger opened on Jun 19, 2026
  1

• (Almost) All spaces which are CW complexes

  trait
  pi-base/data#1798 · Filter by author felixpernegger opened on Jun 10, 2026

• Theorem Suggestion: Well-based + Homgeonous + ~sequentially discrete => First countable

  theorem
  pi-base/data#1794 · Filter by author felixpernegger opened on May 31, 2026
  1

• Theorem Suggestion: Has cofinite topology => Symmetrizable

  theorem
  pi-base/data#1792 · Filter by author felixpernegger opened on May 28, 2026
  3

• two theorems about weakly first countable

  theorem
  pi-base/data#1789 · Filter by author felixpernegger opened on May 25, 2026
  19

• Two theorems about hemicompact groups

  theorem
  pi-base/data#1785 · Filter by author felixpernegger opened on May 22, 2026

• S99|P28 needs to be fixed

  fixtrait
  pi-base/data#1780 · Filter by author felixpernegger opened on May 18, 2026

• Some statistics about unknown traits

  metatrait
  pi-base/data#1779 · Filter by author felixpernegger opened on May 17, 2026
  1

• Space Suggestion: Torus and Klein bottle

  space
  pi-base/data#1770 · Filter by author felixpernegger opened on May 4, 2026

• Theorems around CW complexes

  theorem
  pi-base/data#1769 · Filter by author felixpernegger opened on May 1, 2026
  16

• Property Suggestion: Finite dimensional CW complex

  property
  pi-base/data#1768 · Filter by author felixpernegger opened on May 1, 2026
  1

• Add quotient map preservation meta-properties to locally connected, locally path connected

  property
  pi-base/data#1760 · Filter by author GeoffreySangston opened on Apr 27, 2026
  4

• Theorem Suggestion: Locally (half) one euclidean + topological n-manifold (with boundary) => CW complex

  theorem
  pi-base/data#1759 · Filter by author felixpernegger opened on Apr 27, 2026
  1

• Theorem Suggestion: Has open path components + GO Space => Locally contractible

  theorem
  pi-base/data#1757 · Filter by author felixpernegger opened on Apr 25, 2026
  1

• Space Suggestion: R^3

  space
  pi-base/data#1755 · Filter by author felixpernegger opened on Apr 24, 2026
  1