amurinekir amurinekir
  • 06-02-2024
  • Mathematics
contestada

Show that if A and B are countable sets then A×B is also countable. Hint: If A is countable then {a}×A is countable.​

Respuesta :

Otras preguntas

Jose has $2.50 in nickels and dimes in his jar. If he has 11 more nickels than dimes, how many dimes does he have?
what is the recommended daily dosage of fluoride in a prescribed supplement for a child over 3 years
harry pays $188 per month for parking. during an average month, he parks in the garage 20 days. What is the average rate he pays per day to park in the garage
Research has found that the body's immune system can attack your own body parts, leading to all but which of the following conditions?
how to change exponential form number to standard decimal notation numbers
Any help with this problem? X/5-g=a for x
Why the Sun seems to be red or yellow at different parts of the day?
Which shape has the same volume as the given cylinder?
Write out three different search phrases you could use to find information about reality television on the internet.
An electrician charges $75 for the first hour of labor and $60 for each additional hour of labor a customer calculates that the electrician charges $225 for the