Sold by Athena Rare Books ABAA, Fairfield, CT, U.S.A.
Association Member:
AbeBooks Seller since 24 January 2003
Seller rating 2 out of 5 stars
TP + [iii]-vi = Preface + [vii]-xvi = Table of Contents + [1]-336 + [1]-8 = Publisher's ads. Octavo. First Edition. "De Morgan's work, which commenced in the 1840's, can be seen as the bridge between [the] older [Aristotelian] approach [to logic] and Boole's analytical formulation. Boole acknowledged his debt to De Morgan and Hamilton in the preface to his first logical work, 'The Mathematical Analysis of Logic' (1847)." (DSB under De Morgan). De Morgan's work, Formal Logic, published in 1847, is principally remarkable for his development of the numerically definite syllogism. The followers of Aristotle say that from two particular propositions such as Some M's are A's, and Some M's are B's nothing follows of necessity about the relation of the A's and B's. But they go further and say in order that any relation about the A's and B's may follow of necessity, the middle term must be taken universally in one of the premises. De Morgan pointed out that from Most M's are A's and Most M's are B's it follows of necessity that some A's are B's and he formulated the numerically formulated definite syllogism which puts this principle in an exact quantitative form. Suppose, for example, that the number of souls on board a steamer was 1000, that 500 were in the saloon, and 700 were lost. It follows of necessity, that at least 700 + 500 - 1000, that is, 200, saloon passengers were lost. This single principle suffices to prove the validity of all the Aristotelian moods. It is therefore a fundamental principle in necessary reasoning. Here then De Morgan had made a great advance by introducing quantification of the terms. Interestingly, the book is printed throughout using the "long s" (the eighth word in the book's title is, for instance, printed as Neceffary) - a practice that had been generally abandoned by British printers more than 50 years earlier. Publisher's later cloth binding (the six pages of ads present at the end of the book are dated November, 1853) with a printed spine label with faded gilt lettering. The terior is clean, tight and bright. ADDITIONAL PHOTOS AVAILABLE UPON REQUEST.
Seller Inventory # 985
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If you are a consumer you can cancel the contract in accordance with the following. Consumer means any natural person who is acting for purposes which are outside his trade, business, craft or profession.
INFORMATION REGARDING THE RIGHT OF CANCELLATION
Statutory Right to cancel
You have the right to cancel this contract within 14 days for any reason.
The cancellation period will expire after 14 days from the day on which you acquire, or a third party other than the carrier and indicated by you acquires, physical possession of the the last good or the last lot or piece.
To exercise the right to cancel, you must inform us, Athena Rare Books ABAA, 424 Riverside Drive, 06824, Fairfield, Connecticut, U.S.A., of your decision to cancel this contract by a clear statement (e.g. a letter sent by post, fax or e-mail). You may use the attached model cancellation form, but it is not obligatory. You can also electronically fill in and submit a clear statement on our website, under "My Purchases" in "My Account". If you use this option, we will communicate to you an acknowledgement of receipt of such a cancellation on a durable medium (e.g. by e-mail) without delay.
To meet the cancellation deadline, it is sufficient for you to send your communication concerning your exercise of the right to cancel before the cancellation period has expired.
Effects of cancellation
If you cancel this contract, we will reimburse to you all payments received from you, including the costs of delivery (except for the supplementary costs arising if you chose a type of delivery other than the least expensive type of standard delivery offered by us).
We may make a deduction from the reimbursement for loss in value of any goods supplied, if the loss is the result of unnecessary handling by you.
We will make the reimbursement without undue delay, and not later than 14 days after the day on which we are informed about your decision to cancel with contract.
We will make the reimbursement using the same means of payment as you used for the initial transaction, unless you have expressly agreed otherwise; in any event, you will not incur any fees as a result of such reimbursement.
We may withhold reimbursement until we have received the goods back or you have supplied evidence of having sent back the goods, whichever is the earliest.
You shall send back the goods or hand them over to us or Athena Rare Books ABAA, Fairfield, Connecticut, U.S.A., without undue delay and in any event not later than 14 days from the day on which you communicate your cancellation from this contract to us. The deadline is met if you send back the goods before the period of 14 days has expired. You will have to bear the direct cost of returning the goods. You are only liable for any diminished value of the goods resulting from the handling other than what is necessary to establish the nature, characteristics and functioning of the goods.
Exceptions to the right of cancellation
The right of cancellation does not apply to:
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