Panthoides ( el, Πανθοίδης;
fl. c. 275 BC) was a
dialectician
A philosopher is a person who practices or investigates philosophy. The term ''philosopher'' comes from the grc, φιλόσοφος, , translit=philosophos, meaning 'lover of wisdom'. The coining of the term has been attributed to the Greek th ...
and
philosopher
A philosopher is a person who practices or investigates philosophy. The term ''philosopher'' comes from the grc, φιλόσοφος, , translit=philosophos, meaning 'lover of wisdom'. The coining of the term has been attributed to the Greek th ...
of the
Megarian school
The Megarian school of philosophy, which flourished in the 4th century BC, was founded by Euclides of Megara, one of the pupils of Socrates. Its ethical teachings were derived from Socrates, recognizing a single good, which was apparently combined ...
. He concerned himself with "the logical part of philosophy", and at some point taught the
Peripatetic
Peripatetic may refer to:
*Peripatetic school, a school of philosophy in Ancient Greece
*Peripatetic axiom
* Peripatetic minority, a mobile population moving among settled populations offering a craft or trade.
*Peripatetic Jats
There are several ...
philosopher
Lyco of Troas
Lyco of Troad, Troas (; grc-gre, Λύκων, Lýkōn, ''gen''.: ; c. 299 – c. 225 BC), son of Astyanax, was a Peripatetic philosopher and the disciple of Strato of Lampsacus, Strato, whom he succeeded as the head of the Peripatetic school, ...
. He wrote a book called ''On Ambiguities'', against which the
Stoic
Stoic may refer to:
* An adherent of Stoicism; one whose moral quality is associated with that school of philosophy
*STOIC, a programming language
* ''Stoic'' (film), a 2009 film by Uwe Boll
* ''Stoic'' (mixtape), a 2012 mixtape by rapper T-Pain
*' ...
philosopher
Chrysippus
Chrysippus of Soli (; grc-gre, Χρύσιππος ὁ Σολεύς, ; ) was a Greek Stoic philosopher. He was a native of Soli, Cilicia, but moved to Athens as a young man, where he became a pupil of the Stoic philosopher Cleanthes. When Clean ...
wrote a treatise.
He disagreed with
Diodorus Cronus
Diodorus Cronus ( el, Διόδωρος Κρόνος; died c. 284 BC) was a Greek philosopher and dialectician connected to the Megarian school. He was most notable for logic innovations, including his master argument formulated in response to Ari ...
concerning his ''Master Argument'', arguing that something is possible which can never be true, and that the impossible can never be the consequence of the possible, and that therefore not everything that has happened is
necessarily true
Logical truth is one of the most fundamental concepts in logic. Broadly speaking, a logical truth is a statement which is true regardless of the truth or falsity of its constituent propositions. In other words, a logical truth is a statement whic ...
. Diodorus' view was that everything that has happened must be true, and that therefore nothing is possible which can never be true.
[Epictetus, ''Discourses'', ii. 19. 1]
Notes
References
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{{Authority control
3rd-century BC people
Hellenistic-era philosophers
Megarian philosophers