The Leanpub 60 Day 100% Happiness Guarantee
Within 60 days of purchase you can get a 100% refund on any Leanpub purchase, in two clicks.
See full terms...
Book I
Two people wake with no names, no past, and no way out — only a maze built entirely from the rules of logic, where every proof buys survival and every mistake steals a piece of who they are. Something ancient is watching, something dangerous still loves one of them, and a machine dead for twenty years is starting, impossibly, to wake. Propositional Logic: The Unseen Maze turns the hardest ideas in mathematics into a fight for two people's minds — and asks what's left of you once you've proven everything except who you are.
Minimum price
$11.00
$19.00
About the Book
Book I: Propositional Logic — The Unseen Maze
Manu and Lopa wake with no memory of who they are, trapped in a maze built entirely of logic — its doors open only for valid proofs, and every mistake costs them something real. To survive, they must master four ways of proving truth: truth tables, natural deduction, the axiomatic method, and contradiction.
They are not alone. A hidden watcher feeds them without understanding the maze he tends. A nihilist from their forgotten past, brilliant at contradiction and obsessed with Lopa, proves as dangerous as he is unexpectedly merciful. And beneath it all, a machine is waking — dormant for twenty years, since a man named Vibhuda L. Dor died trying to solve the one theorem that would let it fly.
With every proof, memory returns. Manu recognizes doors that shouldn't know his touch. Lopa follows a stranger's handwriting toward a mentor she can't yet name. And the two of them — friends since university, growing closer with every room survived — discover that logic isn't just the maze's language. It's the only thing keeping them whole.
Propositional Logic: The Unseen Maze is Book One of a four-part series, carrying its characters from the forge of basic connectives to the threshold of a new way of thinking.
About the Author
Santosh Behera writes at the intersection of mathematics and story, believing that even the most rigorous ideas in logic deserve to be felt, not just understood. Propositional Logic: The Unseen Maze grew out of a simple conviction: that a theorem proven honestly can move a reader the same way a well-told scene can — and that the two need not be separate things. When not building mazes out of proofs, Santosh is usually thinking about the next one.
Click the buttons to get the free sample in PDF or EPUB, or read the sample online here
Within 60 days of purchase you can get a 100% refund on any Leanpub purchase, in two clicks.
See full terms...
We pay 80% royalties on purchases of $7.99 or more, and 80% royalties minus a 50 cent flat fee on purchases between $0.99 and $7.98. You earn $8 on a $10 sale, and $16 on a $20 sale. So, if we sell 5000 non-refunded copies of your book for $20, you'll earn $80,000.
(Yes, some authors have already earned much more than that on Leanpub.)
In fact, authors have earned over $15 million writing, publishing and selling on Leanpub.
Learn more about writing on Leanpub
If you buy a Leanpub book, you get free updates for as long as the author updates the book! Many authors use Leanpub to publish their books in-progress, while they are writing them. All readers get free updates, regardless of when they bought the book or how much they paid (including free).
Most Leanpub books are available in PDF (for computers) and EPUB (for phones, tablets and Kindle). The formats that a book includes are shown at the top right corner of this page.
Finally, Leanpub books don't have any DRM copy-protection nonsense, so you can easily read them on any supported device.
Learn more about Leanpub's ebook formats and where to read them
You can use Leanpub to easily write, publish and sell in-progress and completed ebooks and online courses!
Leanpub is a powerful platform for serious authors, combining a simple, elegant writing and publishing workflow with a store focused on selling in-progress ebooks.
Leanpub is a magical typewriter for authors: just write in plain text, and to publish your ebook, just click a button. (Or, if you are producing your ebook your own way, you can even upload your own PDF and/or EPUB files and then publish with one click!) It really is that easy.