Logic Cheat Sheet Prof. Woon PS 2703 August 27, 2007 De nitions Valid argument Reasoning in which a conclusion follows necessarily from the premises presented, so that the conclusion cannot be false if the premises are true. Statements Either true or false, but not both. Represented by letters. Not (negation):P means \it is not the case that P"

Rule Name Rule Logic Example Hypothesis Givens. First lines of a proof. It is raining today. You live in McKinney, Texas. Therefore ∴ Therefore. In conclusion. Modus Ponens → ∴ It is raining today. If it is raining today, I will not ride my bike to school. Therefore, I will not ride my bike to school. Modus Tollens ¬ → ∴¬

Logic Cheat Sheet by mariusvnh - Cheatography.com Created Date: 20210506141303Z ...

Assumptions Goals A if C then D ⇝ Assumptions Goals A D C Example 3. This is definitely the law you will use the most. To show that ifa2 is even then a is even, first assume thata2 is even, and now show that a2, and then prove that a is even. (For-All) To prove “For all x, C(x)” from some assumption A, first assume you have avariable x (that is, an x, but not any particular x) in ...

Reference Sheet for Logic and Program Proofs Logical Equivalences De nition of ^ Idempotent Laws DeMorgan’s Laws Distributive Laws P ^:P False p _p p :(p ^q) :p _:q p _(q ^r) (p _q) ^(p _r)

Chapter 1 cheat sheet Logical operators, their truth tables, laws: Precedence of Logical Operators: ¬, , , , , Laws of Propositional logic: p ¬p T F F T

May 6, 2021 · A simple cheat sheet that describes logical operator and their use. ... Download the Logic Cheat Sheet. 1 Page. PDF (recommended) PDF (1 page) Alternative Downloads. PDF (black and white) LaTeX Created By. mariusvnh. Metadata. Languages: ...

Traditional Logic: Cheat Sheet CS 3234: Logic and Formal Systems Martin Henz and Aquinas Hobor August 19, 2010 Generated on Monday 23 August, 2010, 15:26 Starting the Module Module TraditionalLogicCheat. De ning Terms Parameter Term : Type. Populate the type Term with a particular instance.

2 Predicate Logic 2.1 Syntax Thesyntaxofpredicatelogicisdefinedbythefollowinggrammar: t::= x |f(t,...,t) P::= p(t,...,t) |¬P |P ∧P |P ∨P |P →P |∀x.P |∃x.P ...