REFERRING to the review of Hilbert's “Grundlagen der Geometric,” on p. 394 of No. 2066 of NATURE (June 3), may I point out that the commutative law of addition can be proved without the help of any ...

Imposing crippling tariffs on our partners and ourselves isn’t a real solution, it is just creating another set of problems.

This is a preview. Log in through your library . Abstract For any finite commutative multiplicative monoid S with an element 0 such that S0 = {0} ≠ S, some decompositions of S are given as the ...

NEITHER Dr. Hilbert nor the reviewer make any suggestion that the commutative law of addition is best proved as a deduction from the laws of multiplication. But the laws of multiplication are so often ...