AGDA

Verified Functional Programming in Agda (ACM Books)
ACM Books
£64.38
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.
Osprey Aura AG Women's Backpacking Pack - Challenger Blue (WS)
Osprey Europe Limited
£158.15
Aura AG 65 S women Trekking backpack blue
Atrauman AG Silver 10 x 10cm (x10)
Hartman
£24.00
Atrauman Ag Silver Dressings 10cm x 10cm (10 dressings)
Winter World (The Long Winter Book 1)
Legion Books
£3.99
A global ice age... pushes the human race to the brink of extinction.In our darkest hour, an international consortium ventures into space, looking for answers.Near Mars, they make a groundbreaking discovery.Could it save us from the ice age?Or is it the cause?The race is on to find out--and to save humanity as ice spreads across the globe.* * * From A.G. Riddle, the worldwide bestselling author of The Atlantis Gene and Departure, comes a new sci-fi thriller that will change the way you look at Earth’s place in the solar system forever.* * * Each month, it grows colder. Snow falls in summer. Glaciers trample cities across North America, Europe, and Asia. The new ice age gripping the Earth shows no signs of stopping.Chaos erupts. Around the world, people abandon their homes, fleeing the cold, flocking to regions where they can survive.Nations prepare to go to war for the world’s last habitable zones.NASA and other scientific organizations race to discover why the world is cooling. They send probes into the solar system to collect readings. Near Mars, one of the probes finds something no one expected: a mysterious object, drifting toward the sun. Could it be responsible for the new ice age? And if so, can we stop it? Or is the artifact merely an observer? Or neither? Could it be a relic from a long-extinct civilization? One thing is certain: investigating the artifact is humanity’s best hope of survival.As the ice age claims more lives and the world slides into anarchy, an international consortium launches a mission into space to study the object and make contact. But the first contact mission doesn’t go as planned. What the crew discovers out there is beyond anyone’s imagination.Two members of the first contact mission may hold the keys to humanity’s salvation.Dr. Emma Matthews is the commander aboard the International Space Station. For months, she has watched the world below freeze and civilization unravel. The headlines tell only half of the story. The messages from her sister tell the rest, of a world witnessing mass migrations, fighting for survival, struggling to provide a future for their children. When a catastrophe strikes the ISS, Emma faces her own fight for survival.Dr. James Sinclair is one of the greatest scientists alive. A mind before his time. Years ago, he invented something with the potential to change the world--an invention that would upset the balance of power in the world forever. Fearing that change, his enemies sent him to prison for a crime he didn’t commit. But with humanity’s future at stake, NASA asks him to join the first contact mission. His expertise is vital to the mission’s success--and to saving Emma. With the clock ticking down to humanity’s final days on Earth, James makes a decision that will change his life forever and may determine the fate of the entire human race.* * * Praise for A.G. Riddle “…reads like a superior collaboration between Dan Brown and Michael Crichton.” -- The Guardian on Pandemic “I finished the book fast because I just couldn’t wait…” -- WIRED GeekDad on Departure “Riddle… keep(s) the focus on his characters… rather than the technological marvels” -- Publisher’s Weekly on Departure “Well-constructed and tightly-wound as a fine Swiss watch—DEPARTURE has non-stop action, an engaging plot and, of course, wheels within wheels.” -- Diana Gabaldon, bestselling author of Outlander
AG Subway Simulator Lite
Alpha Intl. IT Group
£0.00
My Love Will Never Die
Claire Wyndham & AG
£0.99
ConvaTec 3862695 Aquacel Ag+ Extra Dressing, 10 cm width, 10 cm Length (Pack of 10)
ConvaTec
£71.95
Convatec Italia Medicazione in hydrofiber e ioni argento intessuta in lyocell aquacel ag + extra 10x10cm 10 pezzi
Vileda Supermop AG Mop Head (Blue)
Vileda Professional
£4.95
SuperMop Ag Refill The super hygienic solution for fast and intensive floor cleaning. The best mop just got better The new Vileda Professional Supermop Ag is a hygienic solution for fast, effective and intensive cleaning of small and medium sized floor areas. The unique construction that hinders the growth and multiplication of bacteria, now has silver ions added that inhibit 99.99% of bacteria growth within the mop. All packed in a new, modern and fresh looking design. SuperMop Ag Improved cleaning results The new modern design and effective zig-zag edges are definitely more than a facelift. Our tests* found that compared with the previous mop generation, the new SuperMop Ag picks up 30% more loose dirt, is 5% more absorbent and has a more even water release; reducing streaking and allows floors to dry quicker and more evenly. The monoclick handle connector has also been improved, increasing the connection force between mop head and handle by over 20% ensuring the mop heads stay securely connected during mopping. Remove and kill bacteria! Vileda Professional are experts in the anti-bacterial properties of silver ions and how to translate these benefits into our products. Independent tests** show Professional Supermop Ag has remarkable anti-bacterial activity, inhibiting the growth of bacteria (bacteriostatic activity) by 99.99%. Hygiene Contains silver ions Independently tested to inhibit bacteria growth by 99.99% Oval design - allows easy cleaning of corners Colour-coded in four colours to avoid cross contamination Machine washable at 60ºC but can be washed up to 95º Durability Very high resistance to detergents and chemicals
adidas Men's Copa 19.1 Ag Football Boots, Black (Negro 000), 8 UK
Adidas
£84.97
Prends le dessus dès le premier toucher de ballon avec cette chaussure de football. Laisse la Copa transformer ton jeu. La tige en cuir de kangourou confortable t'offre un confort uLtime, tandis que l'empeigne moulée assure un contact optimal avec la balle pour plus de contrôle. Le col stretch enveloppe le pied pour t'aider à laisser ton empreinte sur le jeu.Toucher exceptionnelLa construction X-Ray intégrée au niveau de l'empeigne permet un contrôle supérieur du ballon et un meilleur grip.Confort premiumLa tige en cuir de kangourou de qualité supérieure allie un confort et un toucher parfaits. Le col structuré en maille textile garantit un chaussant adapté.Absorption d'eau réduiteCette chaussure présente une finition Fusionskin, un traitement du cuir innovant pour une construction sans coutures et une absorption d'eau minimale.Domine tes adversaires sur terrain synthétiqueLa semelle extérieure Sprintframe uLtra performante est composée de couches injectées pour une stabilité supérieure.Semelle de propreté OrthoLite pour le confort et la performance.Fermeture par lacets. Languette unique.Tige en cuir de kangourou premium. Empeigne rayon X.Semelle extérieure Sprintframe légère.Renfort en mousse pour plus de confort.
Osprey Atmos AG Men's Backpacking Pack - Abyss Grey (LG)
Osprey Europe Limited
£158.36
The Atmos AG is equipped with the unique, stretched AG AntiGravity backsystem that is attached to the worldwide first fully ventilated waist belt. With a three-dimensional design out of stretched mesh, the AG AntiGravity backsystem offers special support in the lumbar region and adapts to the body perfectly. This allows for exceptional load distribution and unique freedom of movement. The backsystem simultaneously offers a spacious ventilation area. Combined with the fully ventilated hip belt, the Atmos AG is especially comfortable in warm weather and still versatile enough for the whole year. Equipped with the ExoForm Biostretch shoulder straps, load control straps and Fit-on-the-Fly hip belt, the backpack feels weightless on your back, even at full load. The Inside Out compression strap system keeps the backpack contents in their place, offering support while wearing. The backpack is equipped with two zip pockets on the front side as well as bottom and cover pockets for quick and easy access to your equipment. Thanks to the practical Stow-on-the-Go system, you can easily fasten your trekking poles to the backpack without removing it. The sleeping bag compartment with internal partition offers the option of storing more equipment separately. The integrated and removable rain hood is stored in the cover. If you want to save weight, you can remove the cover and thanks to the FlapJacket, the backpack contents will still be protected from weather conditions.Size M: 65 litres, 2190 gSize L: 68 litres, 2220 gAG AntiGravityAG AntiGravity is Osprey's award-winning backsystem, whose 3D stretched mesh runs seamlessly from the shoulder area to the hip fins. AG AntiGravity offers excellent load distribution and allows the wearer to move as if he weren't carrying a backpack at all.BioStrechBioStretch...
Camelion AG 3 LR 41 1.5 V Alkaline Button Cell Battery (Pack of 10)
Camelion
£1.18
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
Autoglym AG 255003 Convertible Soft Top Clean & Protect Complete Kit
Altro Ltd.
£20.49
Regularly cleaning your soft top will keep green algae at bay and its original colour looking vibrant. Our Convertible Soft Top Clean & Protect complete kit contains everything you need to clean and protect your mohair, double duck, fabric or canvas fabric hood. If you have a vinyl hood, clean thoroughly with Bodywork Shampoo Conditioner then protect with Bumper & Trim Gel.Contents: -500ml Soft Top Cleaner -500ml Soft Top Protector -1 x White Cleaning SpongeHow to use this product: 1. Mask off bodywork area and dampen convertible top with water. 2. mShake Soft Top Cleaner well before use and spray over entire convertible top surface. 3. Agitate with sponge provided and thoroughly rinse using a low pressure hose or watering can ensuring all product is removed. Pat surface dry to remove surplus water. 4. Spray Soft Top Protector over the entire convertible top surface and remove any overspray from windows and bodywork immediately. 5. Allow Soft Top Protector to fully dry before driving. Store product at room temperature and do not allow to freeze. Before use, please refer to the full instructions detailed on the enclosed bottles. Wash the supplied accessories as required in clean, warm water and allow to air dry.
AG Adriano Goldschmied Men's The Graduate Tailored Leg Linen Pant
AG Adriano Goldschmied
£117.06
AG The Graduate Fit Guide These versatile AG® pants will keep you looking sharp all season long. The Graduate is an updated straight fit that slims from the knee down for a more tailored look. Crafted from a lightweight and breathable linen-cotton blend. Classic five-pocket design. Tonal topstitching. Leather brand logo patch at back waist. Belt-loop waistband. Signature stitching at back pockets. Zipper fly and button closure. 55% linen, 45% cotton. Machine wash cold, tumble dry. Imported. Measurements: Waist Measurement: 32 in Outseam: 44 in Inseam: 34 in Front Rise: 10 in Back Rise: 13 in Leg Opening: 16 in Product measurements were taken using size 32, inseam 34. Please note that measurements may vary by size.
Osprey Poco AG Unisex Hiking Child Carrier Pack with 11L Detachable Daypack - Seaside Blue (O/S)
Osprey Europe Limited
£265.95
Featuring the unique AG AntiGravity 3D suspended mesh backsystem, the Osprey Poco AG Plus is a comfortable, easy child carrier both for parents and for child. The backsystem can be fitted to any size adult with a supportive fit and high ventilation. The safety harness and foots stirrups can be adjusted to fit any child, keeping them secure and comfortable on long walks.A zipped compartment beneath the seat provides plenty of storage space, with mesh side pockets and a zipped hipbelt pocket offering quick access to small essentials on the go. A collapsible sun shade and integrated rain cover provide protection from the elements. The whole carrier can be collapsed for easy storage when not in use.- Adjustable child safety harness and foot stirrups- Adjustable AG AntiGravity 3D suspended mesh backsystem- Fit-on-the-Fly adjustable hipbelt- Sternum strap with emergency whistle- Underseat zipped compartment- Mesh side pockets- Zipped hipbelt pocket- Sun-shade- Integrated raincover- Collapsable design- TUV GS safety certified- 3.48kg- 73cm x 38cm x 43cm
Böhmer-AG Camo Petrol Inverter Silent Generator W4500i, 1.9 KW, Ultra Low Noise - UK Plugs
Böhmer-AG
£399.99
The Böhmer-AG Camo inverter generator rangeThe class leading Böhmer-AG Camo inverter generator is not just the best looking generator around, it has the highest quality components and build quality too. All Böhmer-AG generators feature a high quality copper wound motor powered by a world class, low fuel consumption, ultra low noise, Böhmer-AG 4 stroke engine. This guarantees consistent, pure sine wave power while generating minimal emissions and only 49dB noise level at 7 meters.With an RDC safety switch and external earth point, this generator can be used for a wide range of power supply needs from camping to sensitive electrical equipment.The Böhmer-AG Camo is the best looking, best performing powerhouse available on the market today.SPECIFICATIONSFrequency (HZ): 50Voltage (V): 230Output Power (KW): 1.7Max Output Power (KW): 1.9Power Factor: 1.0Charging Voltage DC (V): 12Charging Current DC (A): 8Overload Protect DC: Non-Fuse ProtectorPhase: SingleEngine Type: 4 Stroke OHV Forced-Air-CooledFuel Capacity (L): 4Continuous Run Time: 6 HoursOil Capacity (L): 0.35Starting Mode: Recoil StarterIN THE BOX1 x Inverter Generator1 x User Manual1 x DC Charging Clamps1 x Spark Plug Tool1 x Spark Plug Too Handle1 x Screwdriver1 x Fuel Funnel1 x Black Gun CapPlease note these inverter generators are not supplied with consumable components such as oil and fuel.
AG DESIGN Disney Fairies, Children's Room Curtain, 280x245 cm, 2 Parts (140x245 cm), FCCXXL 4004, Polyester Multi-Colour, 0.1 x 280 x 245 cm
AG Design
£113.68
1 pair of Mural Curtains Standard 280cm Drop x 245cmMachine Washable 30C 100%
Alchemy Gothic Agla Ring

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£11.99