Recent content by albert1992

Exactly why the statement is false, but i have to prove that it is false by negating the whole expression

I have trouble disproving the following expression I worded it as follows: The product of certain number and every other nonzero number is 1

i have to disprove the statement since it is false

there exists an x,for every y (if y does not equal to zero then x*y=1) *real numbers universe

Homework Statement ∃x∀y(y̸=0→xy=1) in the real numbers universe. Homework Equations The Attempt at a Solution Since the given statement is false I negated the whole statement to become ∀x∃y(y̸!=0^xy!=1) (!= means not equal to) then I would have to prove this correct...

I think it works but what about 1 1 squared does divide the square free 1

Homework Statement x is square free (not divisible by a perfect square) on Z Homework Equations Z meaning all integers. The Attempt at a Solution I did a similar problem earlier that asked for the expression for prime numbers on the Natural numbers domain. For that problem the...

Well I used a similar concept but I had trouble controlling the speed of the disc I was using. Getting the timing right was the challenge.

5,10,15,and at 20 seconds so four times. If I use a system that winds down once I wouldn't really know how to make it make the sound four times, I guess that's how the grandfather clock would work

Thats the problem I'm facing, for somehow to reset itself or wind itself up

My semester project is to create a device that will make a sound at 5,10 15, and 20 seconds exactly using only gravitational energy. -My initial design used two rotating axles with two gears through them and a chain. It would begin by me dropping a weight attached to one of the axles making it...