Agda is an advanced programming language based on Type Theory. Agda's type system is expressive enough to support full functional verification of programs, in two styles. In external verification, we write pure functional programs and then write proofs of properties about them. The proofs are separate external artifacts, typically using structural induction. In internal verification, we specify properties of programs through rich types for the programs themselves. This often necessitates including proofs inside code, to show the type checker that the specified properties hold. The power to prove properties of programs in these two styles is a profound addition to the practice of programming, giving programmers the power to guarantee the absence of bugs, and thus improve the quality of software more than previously possible. Verified Functional Programming in Agda is the first book to provide a systematic exposition of external and internal verification in Agda, suitable for undergraduate students of Computer Science. No familiarity with functional programming or computer-checked proofs is presupposed. The book begins with an introduction to functional programming through familiar examples like booleans, natural numbers, and lists, and techniques for external verification. Internal verification is considered through the examples of vectors, binary search trees, and Braun trees. More advanced material on type-level computation, explicit reasoning about termination, and normalization by evaluation is also included. The book also includes a medium-sized case study on Huffman encoding and decoding. Exercises are provided at the end of each chapter.
"A gloriously funny book." —Sylvia Lynd, The News-Chronicle "A joy to read ... I cannot remember any passage (describing a cricket match) in a recently published book which has made me laugh so much." —Ralph Straus, The Sunday Times "As fun as it is immense ... You must just get the book and read it."—Gerald Gould, The Observer "One of the most amusing satires it has ever been my luck to read."—James Agate, The Daily Express "Rattling high spirits and irony and wit and keen observation and clean fun: this book's full of them."—D. B. Wyndham Lewis The Sunday Referee "The richest international jest of the century." —The Sunday Dispatch "England, Their England" is an affectionately satirical inter-war comic novel first published in 1933. It hit the right spot at the time and became a bestseller, and has endured as a classic of humour, transending the passage of time. It is particularly famed for its portrayal of a village cricket match. The plot — if there can be said to be a plot — is set in 1920s England, the book is written as if a travel memoir by a young Scotsman who had been invalided away from the Western Front, “Donald Cameron”, whose father's will forces him to reside in England. There he writes for a series of London newspapers, before being commissioned by a Welshman to write a book about the English from the view of a foreigner. Taking to the country and provincial cities, Donald spends his time doing research for a book on the English by consorting with journalists and minor poets, attending a country house weekend, serving as private secretary to a Member of Parliament, attending the League of Nations, and playing village cricket. The village cricket match is the most celebrated episode in the novel, and a reason cited for its enduring appeal. An important character is Mr Hodge; a caricature of Sir John Squire (poet and editor of the London Mercury) while the cricket team described in the book’s most famous chapter is a representation of Sir John’s Cricket Club — the Invalids — which survives today. The book ends in the ancient city of Winchester, where Macdonell had gone to school. New introduction by Alan Sutton. The authorA. G. Macdonell, (1895-1941) was a journalist and satirical novelist. Without doubt his best-known work was England Their England, but the success of this overshadows his other books, many of which were classics in their own way. The Autobiography of a Cad must surely rank as one of the funniest books ever written and Lords and Masters is a cutting and hard-hitting satire with frightening prescience, foreseeing the Second World War as inevitable. His American trip in 1934 is amusingly related in A Visit to America, but his other non-fiction is also powerful and beautifully written, with his highly-regarded Napoleon and his Marshalls providing one of the best accounts of the Napoleonic Wars in one single volume.
A code hidden in the human genome will reveal the ultimate secret of human existence. And could hold humanity’s only hope of survival.* * *Genome is the second and final book in A.G. Riddle’s bestselling series, The Extinction Files.* * *In 2003, the first human genome was sequenced. It was a breakthrough of historic proportions, but only one scientist knows the full truth of what lies buried in our DNA. That secret will change everything we thought we knew about our past. And our future.Dr. Paul Kraus has spent his career searching for what he calls humanity’s lost tribes--human ancestors who have gone extinct. When Kraus compares the DNA samples of the lost tribes with our own, he discovers a pattern of changes. A code. He believes he knows what the code is, but the technology doesn’t exist to fully decode it. To protect the secret, Kraus hides his work and disappears. For years, the secret remains buried. When Kraus dies mysteriously, his work is lost forever.Now the technology exists to finally unravel the code buried in the human genome. The race to find Kraus’s research has begun, and one group will do anything to find it.Dr. Peyton Shaw and her mother have obtained part of Kraus’s research--and a cryptic message that could lead to the remaining pieces. They soon learn that finding those pieces may be more dangerous than anyone imagined. But there’s no choice. His work is the key to stopping a global conspiracy--and an event that will change humanity forever.The ultimate secret, buried in the human genome, will change our very understanding of what it means to be human. For Peyton, finding it may come at an incredible price. She must weigh the lives of strangers against those she loves: Desmond Hughes and her mother. With time running out, Peyton makes a fateful choice--one that can never be undone.Buy Now or Read for FREE in Kindle Unlimited (for a LIMITED TIME).ABOUT GENOMEGENOME is the second novel in A.G. Riddle’s new series, THE EXTINCTION FILES (a two-book series that is now complete). The first book in the series, PANDEMIC, takes readers inside the CDC and WHO response to a deadly outbreak and a conspiracy that stretches across time and the globe. GENOME completes the mystery with a fast-paced global thrill ride to find a mysterious code buried in the human genome. The series is the product of almost three years of research and features the real-life science and history blended with fiction that readers have come to know and love in Riddle’s past novels. Published by Canyon Road, THE EXTINCTION FILES has been lauded by fans of Dan Brown, Michael Crichton, Preston & Child, Robert Masello, and James Rollins, giving the series over 3,000 reviews on Amazon and nearly 15,000 ratings on GoodReads. About A.G. RiddleA.G. Riddle’s debut novel, The Atlantis Gene, became a global phenomenon. It is the first novel in a trilogy that has sold over two million copies, has been translated into 23 languages, and is in development to become a major motion picture.His fourth novel, Departure, follows a group of survivors of a plane crash who find themselves in a changed world. After A.G. Riddle self-published the novel, Twentieth Century Fox optioned the book for a feature film and HarperVoyager (an imprint of HarperCollins) acquired it and published it in hardcover and paperback.His new series, The Extinction Files, is his first release in almost three years. The product of extensive research, the two-book series returns to some of the author’s favorite topics: genetics, infectious diseases, and human origins.Gerry grew up in a small town in North Carolina, and currently resides in Raleigh.
The AG 9 is a premium wireless headset for PlayStation 4 from PDP, the #1 third party manufacturer of video game accessories. With no wires to the controller or console, gamers can enjoy a hassle-free and fully wireless experience with the included USB transmitter. Containing powerful 50mm Neodymium drivers, the headset offers two distinct audio modes: Pure Audio and Bass Boost. The flexible and removable boom microphone with noise and echo canceling technology allows for crystal clear communication for online play. Designed with comfort in mind, the split headband design and extra plush ear cup pads reduce pressure and fatigue during long gaming sessions. Enjoy the signature blue Afterglow lighting or switch to blackout mode to admire the headset's hi-tech circuitry.
Feel like a million dollars in this AG® Legging Ankle.
The Legging Ankle has a low rise, slim fit, and super skinny leg that hits at the ankle.
Verdant is a deep sea green on a baby-wale fine corduroy.
7.5 oz Oppulent Stretch Velvet.
Classic five-pocket design with signature embroidery enhancing the back patch pockets.
Leather brand tab at the back waist.
Belt loop waistband.
Zipper fly and button closure.
54% cotton, 35% modal, 8% polyester, 3% polyurethane.
Machine wash and tumble dry.
Waist Measurement: 28 in
Outseam: 37 in
Inseam: 27 1⁄2 in
Front Rise: 8 in
Back Rise: 13 in
Leg Opening: 10 in
Product measurements were taken using size 25, inseam 28. Please note that measurements may vary by size.
With this Osprey hiking backpack, hiking is even more enjoyable. Awarded by top quality, unique quality and an equally appealing design, this bag surpasses all of its competitors. Measurements: 37 x 76 x 21 cm
The Osprey Poco AG Plus Child Carrier features considered design for both parents and child that ensures comfort, convenience performance on any walk. Osprey consider safety as the most important design factor and as a result, every Poco product carries the TUV GS safety certification. Features adjustable child safety harness, seat and foot stirrups that ensure a high degree of adjustability to accommodate a large range of different size children. Adjustable torso length, Fit-on-the-Fly adjustable hipbelt and AntiGravity 3D suspended mesh backpanel/hipbelt all ensure that this is the most versatile, comfortable and fit friendly child carrier available. Features: *AntiGravity 3D suspended mesh backpanel/hipbelt *Poco raincover and SPF 50 rated sunshade included *Die cut EVA harness *Adjustable torso length *Fit-on-the-Fly adjustable hipbelt *Soft ventilated saddle, adjustable for comfort and balance *Adjustable child safety harness, seat and foot stirrups *Integrated/removable mirror *Kangaroo style daypack attachment *Internal hydration sleeve *Compatible with both Hydraulics and Hydraulic LT reservoirs *Fold away design for easy storage and travel *Sternum strap with emergency whistle *Stretch front pocket *Large zippered lower compartment *Zippered scratch free sunglasses and electronics pocket *Twin zippered hipbelt pockets *Removable Drool pads *Internal key attachment clip *Compatible with Osprey App *L(73cm) W(38cm) D(43cm) *Size: 20L
Camelion AG3 Batteries are made to demanded manufacturing tolerance to provide a compromise between price and quality. A very popular brand backed by strong company ethos in germany. Handy dated 10 pack, be sure of the decision to buy
Böhmer-AG generators are manufactured to a high spec and all models are copper wound whilst the majority of other generators found on the internet are aluminium wound. Why? Because they are much cheaper to produce. Aluminium wound generators will not provide a stable constant current.If it does not say copper, it's probably not!The Böhmer-AG 3800E portable generator is a powerful machine with electric key ignition. Getting power quickly has never been so easy. With the same amazing features and power as it's brother the 3800K, electric start offers simple use to anyone looking for a portable power solution. And, there's also a recoil start as an additional backup. The Generator comes with a superior exhaust that helps reduce the noise pollution drastically, along with the rubber suspension to help reduce any unnecessary vibrations and further reduce noise levels. This durable machine is also suited to any kind of task thanks to resilient exterior frame, fold away handles and tough wheels to help transport your machine over the toughest terrain.SPECIFICATIONSMax Output: 3.0kW/3.8KVAAutomatic voltage regulatorLow oil automatic shut down Continuous Rated Output: 2700W/2.7kWRated Voltage: 220VFuel Tank: 15 LitresOil Capacity: 0.6LOil Type: 10W30 or 10W40Engine Type: Single-Cylinder, 4-Stroke, Air-Cooled, OHV horizontal shaftEngine Output: 8hpEngine displacement: 210ccIN THE BOX1 x 3800E Generator 2 x Wheels 2 x Rubber Feet 2 x Handles 1 x Set of Stainless Steel Fitting Bolts 1 x User Manual 2 x Ignition Keys
'This cop fancy dress costume consists of a black dress with POLICE BADGE TO PLUG IT IN AND A BLACK BASEBALL CAP. Gown and Hat, All brought together with a white lettering "SWAT PRINT '. The dress also has a sexy front zip. Combine three piece knee roll fancy dress police with high boots and glasses, this is the policewoman fancy dress costume perfect for the great look.
adidas Men's X15.2 FG/AG Football Boots in White.- Lace up closure.- Soft synthetic upper.- NSG- Non-stop grip texture keeps the ball where you need it.- X-CAGE midfoot reinforcement for lightweight stability.- Techfit" compression upper that moulds to your foot.- Padded ankle collar.- X-CLAW stud configuration gives greater acceleration and traction.- Agion technology to fight bacteria and odours.- Synthetic uppers, Textile lining, Synthetic sole.- Ref: S74675A
The Redwood AG-2 Series is the ideal choice for a beginner's acoustic guitar, due to its stylish design, high build quality and great sound. The body is constructed from a laminated Basswood top with Agathis back and sides, chosen to produce a warm tone, which resonates nicely from the Grand Concert style body. The neck utilises sturdy hardwood with a smooth composite 21-fret fingerboard; the curved design and comfortable action makes it ideal to learn on. The AG-2 Series features high quality chrome plated buttons to ensure consistent tuning and durable black binding for style and protection. The Redwood AG-2 Series is available in a range of colours, finishes and sizes to suit any beginner guitarist's taste, style and age group.