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If-then-else flow diagram A nested if–then–else flow diagram. The computer science, conditionals (that is, conditional statements, conditional expressions and conditional constructs) are programming language constructs that perform different computations or actions or return different values depending on the value of a Boolean expression, called a condition.
A string is considered true if it contains at least one non-whitespace character (thus, for example, the #if function interprets the strings "0" and "FALSE" as true values, not false). Any string containing only whitespace or no characters at all will be treated as false (thus #if interprets " " and "", as well as undefined parameters, as false ...
In logic, a set of symbols is commonly used to express logical representation. The following table lists many common symbols, together with their name, how they should be read out loud, and the related field of mathematics.
A full conditional thus contains two clauses: the subordinate clause, called the antecedent (or protasis or if-clause), which expresses the condition, and the main clause, called the consequent (or apodosis or then-clause) expressing the result. To form conditional sentences, languages use a variety of grammatical forms and constructions.
[1] [2] Russell's paradox shows that every set theory that contains an unrestricted comprehension principle leads to contradictions. [3] According to the unrestricted comprehension principle, for any sufficiently well-defined property, there is the set of all and only the objects that have that property.
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The corresponding logical symbols are "", "", [6] and , [10] and sometimes "iff".These are usually treated as equivalent. However, some texts of mathematical logic (particularly those on first-order logic, rather than propositional logic) make a distinction between these, in which the first, ↔, is used as a symbol in logic formulas, while ⇔ is used in reasoning about those logic formulas ...
A new report by the Clean Label Project has found that protein powders may contain something other than muscle-building nutrients: lead and cadmium, both of which are toxic.. The national ...