There’s cat food and litter, an office full of sharp tools, a fireplace, and most tricky of all, a staircase descending from the corner of the living room guarded only by a coffee-table-height shelf. Fortunately, there is a handy range of wooden barriers available from various sellers on...
there are elementary proofs known when the complement has even order or when is solvable (we review both of these cases below the fold), which by the Feit-Thompson theorem does cover all the cases, but the proof of the Feit-Thompson theorem involves plenty of character theory (and also rel...
If you reach in below your ear as if you were taking your pulse after an intensive jog, your middle finger will be just under your jawbone. Measure this down to the tip of your chin. You’ll want to multiply this by two to account for the entire jaw and because maths is fun! Addit...