Miscellaneous Quiz / The Logic Manual Definitions

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QUIZ: Can you define these terms from 'The Logic Manual'?

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An argument in English whose formalisation in L1 is valid
A sentence that is false under all interpretations
The study of expressions of a language bare of their meanings
A set of sentences such that there is at least one interpretation under which all sentences of the set are true
A binary relation for which each element in the domain has only one pair
A collection of objects
An argument in which there is no interpretation under which the premisses are all true and the conclusion is false
An assignment of a truth value to every sentence letter of L1
The number of designators associated with a predicate
An argument where the set containing the negation of the conclusion and the premises is consistent
A connective for which the truth-value of the compound sentence that it forms cannot be changed by replacing a subsentence with another subsentence of the same truth-value
Sentences that are true under exactly the same interpretations
A set containing nothing but ordered pairs
The study of the meanings of the expressions of a language
A set of L1-sentences such that there is a L1-structure for which all sentences are true
A sentence that is true under any interpretation
An L1-structure for which the premisses of an argument are true but the conclusion is false
The occurrence of the smallest subsentence of a sentence that contains the connective
An ordered pair containing 'D, I', where D is a non-empty set and I is a function of the set of all constants, sentence letters and predicate letters
The study of language in use
An expression that expresses membership of objects to a set

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