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Aristotelicity

1892 | The Law of Mind | W 8:145; CP 6.123

The property of Aristotelicity may be roughly stated thus: a continuum contains the end point belonging to every endless series of points which it contains. An obvious corollary is that every continuum contains its limits. But in using this principle it is necessary to observe that a series may be continuous except in this, that it omits one or both of the limits.

1903 | Peirce's Personal Interleaved Copy of the 'Century Dictionary' [Commens] | CP 6.166

The Aristotelicity is having every point that is a limit to an infinite series of points that belong to the system.