Question

discrete math:
translating these logical expressions to english (attached)..

Answer 1

i think a) there exists an x for all y such that xy=y

Answer 2

b)? not sure...for all x and for all y, if xis equal or greater than 0 nd y is leess than zero, then x-y=0

Answer 3

c) for every x and for every y there exists z such that x=y+z

?????yes? no? half?;):):):)

Answer 4

seems right ... for every x -> for all x ( think)

Answer 5

k. thaks