The Journal of Philosophical Theological Research (JPTR) is an Open- Access double-blind peer-reviewed Academic quarterly journal that publishes original researchwritten analytically in various philosophical areas such as Philosophy of Mind, Philosophy of Religion, Epistemology, Philosophy of Action, Ethics, Metaphysics, Philosophy of Language, and Philosophy of Science.

The Journal of Philosophical Theological Research is committed to publishing and widely disseminating high-quality content. Our policies are closely aligned with COPE’s (Committee on Publication Ethics) Core Practices document.

Current Issue: Volume 27, Issue 2, August 2025 

Protagoras: Pioneer of Relativism or Pyrrhonian Skepticism?

Pages 33-64

10.22091/jptr.2024.10816.3071

Iman Khodafard; Saeed Bina-ye-Motlagh; Reza Koorang Beheshti; Amir Ehsan Karbasizadeh


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