The development of science, logic, mathematics, and psychology in the 19th century made it necessary to introduce a growing number of new entities, of which classical empiricism and strong extensionalism were unable to give a wholly satisfying account. One of the major issues confronting the 20th century philosophers was to identify which of these entities should be rationally accepted as part of the furniture of the world and which should not, and to provide a general account of how the latter are nevertheless subject to true predication. The 13 original essays collected in this volume explore some of the main approaches to this issue in the 20th century, including Brentano, Meinong, Husserl, Carnap, Frege, Twardowski, Kotarbinski, Nicolai Hartmann, and realist phenomenologists.

Frequently asked questions

Yes, you can cancel anytime from the Subscription tab in your account settings on the Perlego website. Your subscription will stay active until the end of your current billing period. Learn how to cancel your subscription.

No, books cannot be downloaded as external files, such as PDFs, for use outside of Perlego. However, you can download books within the Perlego app for offline reading on mobile or tablet. Learn more here.

Perlego offers two plans: Essential and Complete

Essential is ideal for learners and professionals who enjoy exploring a wide range of subjects. Access the Essential Library with 800,000+ trusted titles and best-sellers across business, personal growth, and the humanities. Includes unlimited reading time and Standard Read Aloud voice.
Complete: Perfect for advanced learners and researchers needing full, unrestricted access. Unlock 1.4M+ books across hundreds of subjects, including academic and specialized titles. The Complete Plan also includes advanced features like Premium Read Aloud and Research Assistant.

Both plans are available with monthly, semester, or annual billing cycles.

We are an online textbook subscription service, where you can get access to an entire online library for less than the price of a single book per month. With over 1 million books across 1000+ topics, we’ve got you covered! Learn more here.

Look out for the read-aloud symbol on your next book to see if you can listen to it. The read-aloud tool reads text aloud for you, highlighting the text as it is being read. You can pause it, speed it up and slow it down. Learn more here.

Yes! You can use the Perlego app on both iOS or Android devices to read anytime, anywhere — even offline. Perfect for commutes or when you’re on the go.
Please note we cannot support devices running on iOS 13 and Android 7 or earlier. Learn more about using the app.

Yes, you can access Objects and Pseudo-Objects by Bruno Leclercq, Sebastien Richard, Denis Seron, Bruno Leclercq,Sebastien Richard,Denis Seron in PDF and/or ePUB format, as well as other popular books in Philosophy & Philosophical Metaphysics. We have over one million books available in our catalogue for you to explore.