Skip to main content
edited tags
Link
François G. Dorais
  • 44.4k
  • 6
  • 150
  • 233
Source Link
Paul
  • 654
  • 4
  • 15

$\aleph_1$-calibre

The square of X which is $\aleph_1$-calibre is still $\aleph_1$-calibre?