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New products
New products
The Nuts and Bolts of Proofs
Free shipping
free shipping in Poland for all orders over 500 PLN
Same day shipping
If your payment will be credited to our account by 11:00
14 days for return
Each consumer can return the purchased goods within 14 days
* The "List of Symbols" has been extended.
* Set Theory section has been strengthened with more examples and exercises.
* Addition of "A Collection of Proofs"
Introduction and Basic Terminology
General Suggestions
Some basic Techniques Used in Proving and Theorem of the Form: If and then B "
Direct Proof
Related Statements
Proof by Contra positive
How to Construct the Negation of a Statement
Special Kinds of Theorems
"If and only if" or Equivalence Theorems
Use of Counterexamples
Mathematical Induction
Existence Theorems
Uniqueness Theorems
Equality of Sets
Equality of Numbers
Composite Statements
Limits
Review Exercises
Exercises without Soultions
Collection of Proofs
. Solutions for the Exercises at the End of the Sections
Other Books on the Subject of Proofs and Mathematical Writing
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We know you love car modelling and you love the Ugears Dream Cabriolet, Roadster, and U-9 Grand Prix. Well, make room on the shelf, because a powerful new mechanical model just muscled its way into the Ugears Automotive collection. Introducing the Drift Cobra Racing Car, a beautifully-styled, two-seat convertible—our twist on what may be the most revered sports car of all time: the Shelby Cobra 427. The Cobra 427, produced between 1965-67, had a 7.0 litre 450-510 horsepower engine, did 0-60 mph in just over 4 seconds, and had a top speed of 185 mph. UGears 70161
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Evaluation kit with Edgeless EAI80 chip that combines ARM-Cortex M4F dual-core CPU and AI-NPU. It is equipped with SPI memory, camera and display connector, CANBUS connector and ESP8266 WiFi module. Banana Pi BPI-EAI 80
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Dispensing needle for precise application of glue, flux with an internal diameter of 0.24mm and an external diameter of 0.45mm.
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Professional tool for crimping SMA and SMB connectors. Solidly made, simple and convenient to use. KY8162-08
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This gearmotor is a powerful 12V brushed DC motor with a 30:1 metal gearbox and an integrated quadrature encoder that provides a resolution of 64 counts per revolution of the motor shaft, which corresponds to 1920 counts per revolution of the gearbox’s output shaft. These units have a 0.61"-long, 6 mm-diameter D-shaped output shaft. This gearmotor is also available without an encoder.
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No product available!
Permanent cylindrical neodymium magnet with a diameter of 4 mm and a height of 3 mm.
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