Boolean Operations

Since conditions are just booleans, you can perform some simple operations on conditions:

And

Outputs true if and only if the two inputs are both true.

Start~#1

And(false, false)~#2
Print(#1, #2)~#3

And(false, true)~#4
Print(#3, #4)~#5

And(true, false)~#6
Print(#5, #6)~#7

And(true, true)~#8
Print(#7, #8)

$ decision and.dc

false
false
false
true

Or

Outputs true if and only if either of the two inputs are true.

Start~#1

Or(false, false)~#2
Print(#1, #2)~#3

Or(false, true)~#4
Print(#3, #4)~#5

Or(true, false)~#6
Print(#5, #6)~#7

Or(true, true)~#8
Print(#7, #8)

$ decision or.dc

false
true
true
true

Not

Outputs true if the input is false, and outputs false if the input is true.

Start~#1

Not(false)~#2
Print(#1, #2)~#3

Not(true)~#4
Print(#3, #4)

$ decision not.dc

true
false

Xor

Outputs true if and only if only one if the inputs is true.

Start~#1

Xor(false, false)~#2
Print(#1, #2)~#3

Xor(false, true)~#4
Print(#3, #4)~#5

Xor(true, false)~#6
Print(#5, #6)~#7

Xor(true, true)~#8
Print(#7, #8)

$ decision xor.dc

false
true
true
false