Theophrastus · Fragments §63b.1

Conversion of Contingent Negative Propositions

Passage 59 of 196 · Greek

Summary

Shows that Theophrastus asserts that the contingent negative proposition also converts, just like the other negative propositions.

§63b.1Fr. 63b Θ. δὲ καὶ ταύτην τὴν ἀποφατικὴν ἐνδεχομένην ὁμοίως ταῖς ἄλλαις ἀποφατικαῖς φησὶν ἀντιστρέφειν.

Theophrastus, on the other hand, says that this contingent negative proposition also converts, similarly to the other negative propositions.

Fr. 63bταύτην τὴν ἀποφατικὴν ἐνδεχομένην — The adjective ἐνδεχομένην ('contingent', 'possible') designates a negative proposition belonging to the modal category of 'contingency' (τὸ ἐνδεχόμενον) in Aristotelian logic. It functions as the subject accusative of the infinitive ἀντιστρέφειν.
Fr. 63bὁμοίως ταῖς ἄλλαις ἀποφατικαῖς — The adverb ὁμοίως ('similarly') governs the dative case (ταῖς ἄλλαις ἀποφατικαῖς) to indicate the object of comparison.

Theophrastus, Fragments §63b.1. Humanitext Reader, https://reader.humanitext.ai/en/text/urn:cts:greekLit:tlg0093.tlg010x09.humanitext-grc1:63b.1

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