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"It is not true that all the students drink coffee."

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#logic #predicate-logic
131
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Is it possible to write all logical statements using only the biconditional operator and negation? How would one prove this using natural deduction?

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#logic #propositional-calculus #first-order-logic #predicate-logic #boolean-algebra
342
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How to express "There is no largest negative real number."

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#number-theory #real-numbers #predicate-logic
100
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Is $(\forall a)( a\in A \implies f(a)=b )$ abuse of notation?

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#predicate-logic
68
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What will Carlos order?

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#logic #predicate-logic #logic-translation
116
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Question on Predicate Logic "If Then" and "$x$ if $y$"

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#discrete-mathematics #predicate-logic
160
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Translate every predicate expression in plain English, use number theory conects whenever possible. Prove or disprove the statements.

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#elementary-number-theory #discrete-mathematics #logic #solution-verification #predicate-logic
147
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Predicate Logic - Difference between two english translated predicate statements

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#logic #predicate-logic
175
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Formalizing Russel's Paradox in FOL.

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#elementary-set-theory #propositional-calculus #predicate-logic
114
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Why is $\lor$ used in cases where xor is intended?

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#logic #notation #relations #predicate-logic
169
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Which one of the first order predicate calculus express the following English statement?

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#logic #predicate-logic #logic-translation
89
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Types of Logic/ proofs

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#logic #predicate-logic #proof-theory
117
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Is this representation of "Einstein's riddle" correct?

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#predicate-logic #logic-translation
100
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Tautologies are valid: Mistake in proof?

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#logic #solution-verification #propositional-calculus #first-order-logic #predicate-logic
124
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Universal quantifier quantifying every object in the domain

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#logic #predicate-logic #quantifiers

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