{"schemaVersion":2,"id":"tlg0057.tlg081.local001","url":"https://thegreeklibrary.org/works/tlg0057.tlg081.local001/","urn":"urn:cts:greekLit:tlg0057.tlg081.local001","title":"Institutio logica","titleGreek":null,"alternateTitles":[],"author":"Galen","authorityName":"GALENUS Med.","authorUrl":"https://thegreeklibrary.org/authors/tlg0057-galenus/","authorityUrl":"https://thegreeklibrary.org/authors/tlg0057-galenus/","editors":["Karl Kalbfleisch"],"publication":{"digitalPublisher":"University of Leipzig","sourceTitle":"Galeni Institutio logica","edition":null,"publisher":"B. G. Teubner","place":"Leipzig","date":"1896","volume":"3-49","series":null,"citation":null,"citationShort":null},"rights":{"text":"Available under a Creative Commons Attribution-ShareAlike 4.0 International License","url":"https://creativecommons.org/licenses/by-sa/4.0/"},"provenance":{"authority":"A Digital Corpus for Graeco-Arabic Studies, funded by the Andrew W. Mellon Foundation","sponsors":[],"funders":["Andrew W. Mellon Foundation"],"principal":null,"responsibilities":[{"role":"Published original versions of the electronic texts","names":[]},{"role":"Keyboarding","names":[]},{"role":"Editor-in-Chief, Perseus Digital Library","names":[]},{"role":"Project Manager (University of Leipzig)","names":[]},{"role":"Project Assistant (University of Leipzig)","names":[]},{"role":"Lead Developer (University of Leipzig)","names":[]},{"role":"Technical Advisor","names":[]}]},"corpus":{"version":"2.2.0","date":"2026-08-29"},"revisionDate":"2026-08-15","sourceUrl":"https://archive.org/details/galnoueisaggdia00kalbgoog/page/n19/mode/2up","sourceLinkType":null,"sourceRights":null,"citation":"Galen. Institutio logica. ed. Karl Kalbfleisch. Galeni Institutio logica, Leipzig, B. G. Teubner, 1896. urn:cts:greekLit:tlg0057.tlg081.local001","excerpt":"(Τῶν φαινομένων τὰ μὲν αἰσθήσει γιγνώ)σκομεν ἅπαντες ἄνθρωποι, τὰ δὲ νοήσει μόνῃ, καὶ 〈ταῦ〉τα (μὲν ἀναποδείκτως, τὰ δὲ μή)τε αἰσθήσει μήτε νοήσει γιγνωσκόμενα δι’ ἀποδείξεως. (δεῖ δὲ τῶν δι’ ἀποδείξεως γιγνωσκομένων) ἐκ προγιγνωσκομένων εἶναι τὴν εὕρεσιν, οὐ μὴν ἁπλῶς γ’ οὕτως (ἐκ τῶν ἐπιτυχόντων), ἀλλ’ ἐκ τῶν οἰκείων 〈τῷ〉 ἀποδειχθησομένῳ, ἐπειδὴ καὶ ἐκ λό(γου τινὸς οἰκείου πείσομεν τὸν ἀναγ)κασθησόμενον τὸν λόγον τοῦτον ὑπὲρ ἑκάστου τῶν ἀπο(ρουμένων συγχωρεῖν·) οἷον εἰ οὕτως ἔτυχεν ὁμολογήσομεν ἴσον εἶναι (Θέωνα Δίωνι, καὶ Φίλωνα δ’ ἴσον εἰ)ναι τῷ αὐτῷ Δίωνι· συμβήσεται γὰρ ἐκ τούτων ἴσος εἶναι (Θέων Φίλωνι διὰ τὸ τὰ τῷ αὐτῷ ἴσα) καὶ ἀλλήλοις ὑπάρχειν ἴσα. καὶ τοίνυν ἡ ἀπό(δειξις ἥδ’ ἐκ τριῶν συνίστα)ται, πρώτου μὲν τοῦ πρώτου ῥηθέντος, ὅπερ ἦν \"ἴσος ἐστὶ (Δίωνι Θέων\", δευτέρου δὲ τοῦ μετ’ α)ὐτό \"Δίωνι Φίλων ἐστὶν ἴσος\" καὶ τρίτου πρὸς τούτοις 〈τοῦ〉 ‘τὰ (τῷ αὐτῷ ἴσα καὶ ἀλλήλοις ἐστὶν…","divisions":[{"label":"ΓΑΛΗΝΟΥ ΕΙΣΑΓΩΓΗ ΔΙΑΛΕΚΤΙΚΗ","url":"https://thegreeklibrary.org/works/tlg0057.tlg081.local001/#tlg0057-tlg081-local001-1"},{"label":"Chapter 2","url":"https://thegreeklibrary.org/works/tlg0057.tlg081.local001/#tlg0057-tlg081-local001-2"},{"label":"Chapter 3","url":"https://thegreeklibrary.org/works/tlg0057.tlg081.local001/#tlg0057-tlg081-local001-3"},{"label":"Chapter 4","url":"https://thegreeklibrary.org/works/tlg0057.tlg081.local001/#tlg0057-tlg081-local001-4"},{"label":"Chapter 5","url":"https://thegreeklibrary.org/works/tlg0057.tlg081.local001/#tlg0057-tlg081-local001-5"},{"label":"Chapter 6","url":"https://thegreeklibrary.org/works/tlg0057.tlg081.local001/#tlg0057-tlg081-local001-6"},{"label":"Chapter 7","url":"https://thegreeklibrary.org/works/tlg0057.tlg081.local001/#tlg0057-tlg081-local001-7"},{"label":"Chapter 8","url":"https://thegreeklibrary.org/works/tlg0057.tlg081.local001/#tlg0057-tlg081-local001-8"},{"label":"Chapter 9","url":"https://thegreeklibrary.org/works/tlg0057.tlg081.local001/#tlg0057-tlg081-local001-9"},{"label":"Chapter 10","url":"https://thegreeklibrary.org/works/tlg0057.tlg081.local001/#tlg0057-tlg081-local001-10"},{"label":"Chapter 11","url":"https://thegreeklibrary.org/works/tlg0057.tlg081.local001/#tlg0057-tlg081-local001-11"},{"label":"Chapter 12","url":"https://thegreeklibrary.org/works/tlg0057.tlg081.local001/#tlg0057-tlg081-local001-12"},{"label":"Chapter 13","url":"https://thegreeklibrary.org/works/tlg0057.tlg081.local001/#tlg0057-tlg081-local001-13"},{"label":"Chapter 14","url":"https://thegreeklibrary.org/works/tlg0057.tlg081.local001/#tlg0057-tlg081-local001-14"},{"label":"Chapter 15","url":"https://thegreeklibrary.org/works/tlg0057.tlg081.local001/#tlg0057-tlg081-local001-15"},{"label":"Chapter 16","url":"https://thegreeklibrary.org/works/tlg0057.tlg081.local001/#tlg0057-tlg081-local001-16"},{"label":"Chapter 17","url":"https://thegreeklibrary.org/works/tlg0057.tlg081.local001/#tlg0057-tlg081-local001-17"},{"label":"Chapter 18","url":"https://thegreeklibrary.org/works/tlg0057.tlg081.local001/#tlg0057-tlg081-local001-18"},{"label":"Chapter 19","url":"https://thegreeklibrary.org/works/tlg0057.tlg081.local001/#tlg0057-tlg081-local001-19"}],"formats":{"html":"https://thegreeklibrary.org/works/tlg0057.tlg081.local001/","json":"https://thegreeklibrary.org/api/works/tlg0057.tlg081.local001.json","compressedReadingDocument":"https://thegreeklibrary.org/works/tlg0057/tlg081/local001.json.gz"}}