card.input

-- Input generated from CardinalNumberXmpPage
)clear all

c0 := 0 :: CardinalNumber
c1 := 1 :: CardinalNumber
c2 := 2 :: CardinalNumber
c3 := 3 :: CardinalNumber
A0 := Aleph 0
A1 := Aleph 1
finite? c2
finite? A0
countable? c2
countable? A0
countable? A1
[c2 + c2, c2 + A1]
[c0*c2, c1*c2, c2*c2, c0*A1, c1*A1, c2*A1, A0*A1]
[c2**c0, c2**c1, c2**c2, A1**c0, A1**c1, A1**c2]
[c2-c1, c2-c2, c2-c3, A1-c2, A1-A0, A1-A1]
generalizedContinuumHypothesisAssumed true
[c0**A0, c1**A0, c2**A0, A0**A0, A0**A1, A1**A0, A1**A1]
a := Aleph 0
c := 2**a
f := 2**c