Logic is the foundation of critical thinking. Logical fallacies are the most commonly found errors in debate. Here is a quick reference guide (cheat sheet) of. Use this free printable cheat sheet to remember everything you learned in the Love and Logic parenting class. Tape this one-pager of notes all around your house and start implementing Love & Logic now!
Equivalent Immediate Inferences of the four Categorical Statements:
All S is P
= No S is non-P (obverse)
= All non-P is non-S (contrapositive)
No S is P
= All S is non-P (obverse)
= No P is S (converse)
Some S is P
= Some S is not non-P (obverse)
= Some P is S (converse)
Logic Cheat Sheet
Some S is not P
= Some S is non-P (obverse)
= Some non-P is not non-S (contrapositive) How to pay aetna copay.
Immediate inferences work in reverse:
All S is non-P
= No S is P (obverse)
All non-S is non-P
= All P is S (contrapositive)
No S is non-P
= All S is P (obverse)
Some S is non-P
= Some S is not P (obverse)
Some S is not non-P
= Some S is P (obverse)
Some non-S is not non-P
= Some P is not S (contrapositive)
Immediate inferences can be combined:
No non-S is P
= No P is non-S = All P is S (converse, obverse)
Some non-S is P
= Some P is non-S = Some P is not S (converse, obverse)
Other translations:
All non-S is P
= All non-P is S (contrapositive)
No non-S is non-P
= All non-S is P (obverse)
Some non-S is not P
= Some non-P is not S (contrapositive)
Some non-S is non-P
= Some non-S is not P (obverse)
Logic Cheat Sheet Pdf
Equivalent Immediate Inferences of the four Categorical Statements:
All S is P
= No S is non-P (obverse)
= All non-P is non-S (contrapositive)
No S is P
= All S is non-P (obverse)
= No P is S (converse)
Some S is P
= Some S is not non-P (obverse)
= Some P is S (converse)
Logic Cheat Sheet
Some S is not P
= Some S is non-P (obverse)
= Some non-P is not non-S (contrapositive) How to pay aetna copay.
Immediate inferences work in reverse:
All S is non-P
= No S is P (obverse)
All non-S is non-P
= All P is S (contrapositive)
No S is non-P
= All S is P (obverse)
Some S is non-P
= Some S is not P (obverse)
Some S is not non-P
= Some S is P (obverse)
Some non-S is not non-P
= Some P is not S (contrapositive)
Immediate inferences can be combined:
No non-S is P
= No P is non-S = All P is S (converse, obverse)
Some non-S is P
= Some P is non-S = Some P is not S (converse, obverse)
Other translations:
All non-S is P
= All non-P is S (contrapositive)
No non-S is non-P
= All non-S is P (obverse)
Some non-S is not P
= Some non-P is not S (contrapositive)
Some non-S is non-P
= Some non-S is not P (obverse)
Logic Cheat Sheet Pdf
Logic Cheat Sheet Pdf
All of this and more is included in this completeImmediate Inference Chart.