This volume surveys how logic can be seen as a living system, not just a set of rigid rules. It links classic principles to newer ideas about how we recognize and organize reasoning.

Starting from the principle of Sufficient Ground, the text shows how judgments can be settled by rational inference. It ties familiar notions like identity to broader claims about when different terms refer to the same content. The work also discusses how classic systems relate to contemporary debates, referencing scholars who challenge or refine long‑standing views. It then proposes a fresh angle by introducing a realm of “modes of action,” a set of logical entities that behave like classes and propositions but open doors to a new algebra of logic. The discussion emphasizes that the totality of all possible modes cannot be defined, yet well‑defined systems of possibilities can exist and have their own logical order.

In this edition, you’ll encounter ideas such as:

How inference can proceed under the axiom of Sufficient Ground and the role this plays in choosing between competing judgments.
The notion of modes of action as a logical category, with operations analogous to addition, multiplication, and implication.
How a calculus of modes of action can be developed alongside the calculus of classes and propositions.
Why the axiom of identity remains central, while other logical laws may play a regulative rather than a productive role in inference.

Ideal for readers of early 20th‑century philosophy and students of logic who want to explore how new ideas can reshape foundational concepts.

"About this title" may belong to another edition of this title.

Store Description

**Please note our transit times are from the date of dispatch.** We first started out as ?The Paperback Exchange,? a chain of physical bookstores where we would part exchange your beloved books for new stories to transport you to faraway places. However, as shopping started to evolve to online shops and marketplaces, we bid our stores goodbye to become ?PBShop.? This transition has only allowed us to blossom as we now ship thousands of titles to book lovers across the globe. We pride ourselves in being a community of local book lovers which allows our passion and devotion to shine in everything we do. In 2020 we not only celebrated our 20th birthday but our 1st birthday as being completely employee owned after becoming an E.O.T in September 2019. We are proud to be different and embrace standing apart on a book mountain by working from a virtual inventory which allows us to provide thousands of books that may be difficult to get for your bookshelf or your studies. Working with a number of different suppliers allows us to explore other avenues such as puzzles, sheet music and even stationery so we really do have something for everyone. Life is about being versatile in all realms of existence. If this is your first purchase with us, or you are a returning customer, we would like to welcome you to the PBShop family, for there is no friend as loyal as a book. We are a company who put our customers at the centre of everything we do as we understand the importance of reading because once you learn to read, you will forever be free. There are a whole lot of things in this world of ours that we are yet to explore, which is why we will forever inspire curious minds.

Visit Seller's Storefront

Seller's business information

Pbshop.co.uk
Unit 22 Horcott Industrial Estate, Horcott Road, Fairford, GL7 4BX, United Kingdom

Sale & Shipping Terms

Terms of Sale

Returns Policy
We ask all customers to contact us for authorisation should they wish to return their order. Orders returned without authorisation may not be credited.
If you wish to return, please contact us within 14 days of receiving your order to obtain authorisation.
Returns requested beyond this time will not be authorised.
Our team will provide full instructions on how to return your order and once received our returns department will process your refund.
Please note the cost to return any...

More Information

Shipping Terms

Orders are shipped from our UK warehouse. Delivery thereafter is between 4 and 14 business days. Please contact us if you have any queries about our services or products.

Shipping rates from United Kingdom to U.S.A.

Shipping rates from United Kingdom to U.S.A.
Order quantity	10 to 20 business days	10 to 20 business days
First item	US$ 6.77	US$ 6.77

Delivery times are set by sellers and vary by carrier and location. Orders passing through Customs may face delays and buyers are responsible for any associated duties or fees. Sellers may contact you regarding additional charges to cover any increased costs to ship your items.