Less Useful Derived Rules

THE REST
The rest of the rules are not all that useful
once you know the highly recommended
and recommended rules.
DA
The rest of the rules are not all that useful
once you know the highly recommended
and recommended rules.
Disjunctive Argument (DA)
AvB
-A
B
AvB
-B
A
DA
The rest of the rules are not all that useful
once you know the highly recommended
and recommended rules.
Disjunctive Argument (DA)
AvB
-A
B
AvB
-A
-A>B AR
B
>O
DA
The rest of the rules are not all that useful
once you know the highly recommended
and recommended rules.
Disjunctive Argument (DA)
AvB
-B
A
AvB
-B
-A>B AR
-B>A CN
A
>O
CA
The rest of the rules are not all that useful
once you know the highly recommended
and recommended rules.
Conjunctive Argument (CA)
-(A&B)
A
-B
CA
The rest of the rules are not all that useful
once you know the highly recommended
and recommended rules.
Conjunctive Argument (CA)
-(A&B)
A
-B
-(A&B)
A
A>-B AR
-B
>O
MT
The rest of the rules are not all that useful
once you know the highly recommended
and recommended rules.
Modus Tollens (MT)
A>B
-B
-A
MT
The rest of the rules are not all that useful
once you know the highly recommended
and recommended rules.
Modus Tollens (MT)
A>B
-B
-A
A>B
-B
-B>-A CN
-A
>O
CH
The rest of the rules are not all that useful
once you know the highly recommended
and recommended rules.
Chain (Hypothetical Syllogism) (CH)
A>B
B>C
A>C
CH
The rest of the rules are not all that useful
once you know the highly recommended
and recommended rules.
Chain (Hypothetical Syllogism) (CH)
A>B
B>C
A>C
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A>B
B>C
A
B
C
A>C
PA
>O
>O
>I