Proper noun
A classical Greek mathematician credited with proving that there are precisely five regular convex polyhedra.
A later middle dialogue of Plato concerning epistemology.
A lunar impact crater 2.8 kilometres in depth and 25 kilometres in diameter, located southeast of the crater Cassini, near the eastern edge of Mare Imbrium.
Source: en.wiktionary.orgAfter agreeing this, Socrates returns to the subject of syllables and letters to conclude from Theaetetus' answers that syllables are different from letters and cannot contain letters (205b). Source: Internet
Although Theaetetus hopes it is possible the lawyer will be able to 'persuade' the jury of the truth (201b), Socrates is unsatisfied as if they are justly persuaded, they will have true knowledge. Source: Internet
Doubt and the sense of wonder Plato said that "philosophy begins in wonder ", Plato, Theaetetus 155 d (tr. Source: Internet
Five dialogues foreshadow the trial: In the Theaetetus (210d) and the Euthyphro (2a–b) Socrates tells people that he is about to face corruption charges. Source: Internet
He concludes his dream by agreeing with Theaetetus that knowledge is 'true judgement with an account' (202c). Source: Internet
In any case, Theaetetus gave a mathematical description of all five and may have been responsible for the first known proof that no other convex regular polyhedra exist. Source: Internet