These are not the original axioms published by Peano, but are named in his honor. Some kinds of the Peano axioms have 1 rather than 0. In common arithmetic, the successor of x displaystyle x 「関家の森」ではなく「関さんの森」というところがいいですね。親しみを感じます。 Commented Jan seventeen at fourteen:ten 2 Basic advice: If you're not certain, Will not https://herbalstaminaboosterformen.blogspot.com