Lathe is the manufacturing tools machines parts by moving the part into the cutting tool.
<u>Explanation:</u>
- The metals, other materials or wood are shaped as pieces using the machine tool which is lathe.
- Lathe is identified as three kinds: Engine lathe, Special purpose lathe, Turret lathe.
- Semi-portable and bench mounted are smaller ones.
- Floor mounted are large lathe it needs special transportations to move.
- Engine lathe can be moved from one area to another because its not too large. The lathe which is adapted many operations are used in maitanance shop.
- Special purpose lathe and Turret lathe is used in mass production.
Answer:
prove that | S | = | E | ; every element of S there is an Image on E , while not every element on E has an image on S
Explanation:
Given that S = { p q |p, q are prime numbers greater than 0}
E = {0, −2, 2, −4, 4, −6, 6, · · · }
To prove by constructing a bijection from S to E
detailed solution attached below
After the bijection :
<em>prove that | S | = | E |</em> : every element of S there is an Image on E , while not every element on E has an image on S
∴ we can say sets E and S are infinite sets
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