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seen Jan 4 at 4:24

Jan
30
awarded  Yearling
May
25
comment Monochromatic degenerate triangles in a two-coloring of the plane
So a monochromatic (1,1,1) implies a (1,1,2) fairly quickly, as does a (2,2,2). But our abundance of $\sqrt{3}$ length equilaterals gets us nothing.
May
20
answered Modified two child problem. Find the probability that both are girls, given that at least one is a girl born in March.
May
19
awarded  Student
May
18
comment Monochromatic degenerate triangles in a two-coloring of the plane
Oops - swapped an Exists for a For All. Thanks @Phira.
May
18
revised Monochromatic degenerate triangles in a two-coloring of the plane
Fixed exists/forall mixup
May
17
asked Monochromatic degenerate triangles in a two-coloring of the plane
May
15
comment Monochromatic triangles in a two-coloring of the plane
Thanks for the reference, @ZsbánAmbrus
May
15
awarded  Editor
May
15
revised Monochromatic triangles in a two-coloring of the plane
added 12 characters in body
May
15
asked Monochromatic triangles in a two-coloring of the plane
May
15
awarded  Supporter
May
15
awarded  Revival
May
14
answered Identical colored squares in plane
May
11
comment Identical colored squares in plane
One nice consequence of the requirement that square edges be parallel to table edges is this: Three squares pairwise intersecting implies overlap of all three.
May
11
comment Identical colored squares in plane
No, @RossMillikan is right: use of the geometry of the squares is crucial. His counterexample that ignores the shape/size/orientation requirements is enough to show this.
Jul
1
awarded  Teacher
Jul
1
answered Vertices of intersection between N spheres