Chapter Two: Liner Games (Ctnd)

PowerScore Logical Games Bible, 2007 old/short edition
Chapter Two: Liner Games (Ctnd)

p. 52
Cannot be true <--> Could be true
Could be true <--> Cannot be true
Must be true <--> Not necessarily true
Not necessarily true <--> Must be true
<--> means opposite side of the logic expression

Cannot be true EXCEPT = Could be true
Could be true EXCEPT = Cannot be true
Must be true EXCEPT = Not necessarily true
Not necessarily true EXCEPT = Must be true

p. 53
Must be false = Cannot be true
Not necessarily false = Could be true
Could be false = Not necessarily true
Cannot be false = Must be true

Must be false EXCEPT = Cannot be true EXCEPT = Could be true
Not necessarily false EXCEPT = Could be true EXCEPT = Cannot be true
Could be false EXCEPT = Not necessarily true EXCEPT = Must be true
Cannot be false EXCEPT = Must be true EXCEPT = Not necessarily true

Must be true = Cannot be false
Cannot be true = Must be false
Could be true = Not necessarily be false
Not necessarily true = Could be false

Reading Progress: p.62