[b][url=http://aleph0.clarku.edu/~djoyce/elements/bookI/cn.html]Common notion 1[/url].[/b][br]Things which equal the same thing also equal one another.[br][b][url=http://aleph0.clarku.edu/~djoyce/elements/bookI/cn.html]Common notion 2[/url].[/b][br]If equals are added to equals, then the wholes are equal.[br][b][url=http://aleph0.clarku.edu/~djoyce/elements/bookI/cn.html]Common notion 3[/url].[/b][br]If equals are subtracted from equals, then the remainders are equal.[br][b][url=http://aleph0.clarku.edu/~djoyce/elements/bookI/cn.html]Common notion 4[/url].[/b][br]Things which coincide with one another equal one another.[br][b][url=http://aleph0.clarku.edu/~djoyce/elements/bookI/cn.html]Common notion 5[/url].[/b][br]The whole is greater than the part.[br]