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  2. Help:Conditional expressions - Wikipedia

    en.wikipedia.org/wiki/Help:Conditional_expressions

    The #switch function selects between multiple alternatives based on an input string. {{#switch: test string | case1 = value for case 1 | ... | default value}} Equivalent to the switch statement found in some programming languages, it is a convenient way of dealing with multiple cases without having to chain lots of #if functions together ...

  3. Independence-friendly logic - Wikipedia

    en.wikipedia.org/wiki/Independence-friendly_logic

    Independence-friendly logic is translation equivalent, at the level of sentences, with a number of other logical systems based on team semantics, such as dependence logic, dependence-friendly logic, exclusion logic and independence logic; with the exception of the latter, IF logic is known to be equiexpressive to these logics also at the level ...

  4. If and only if - Wikipedia

    en.wikipedia.org/wiki/If_and_only_if

    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 ...

  5. Algebra - Wikipedia

    en.wikipedia.org/wiki/Algebra

    Algebra is the branch of mathematics that studies certain abstract systems, known as algebraic structures, and the manipulation of expressions within those systems. It is a generalization of arithmetic that introduces variables and algebraic operations other than the standard arithmetic operations, such as addition and multiplication.

  6. Holiday sleep trouble? 5 secrets of a better snooze

    www.aol.com/holiday-sleep-trouble-5-secrets...

    Getting a good night's sleep can be a little more challenging amid the hype of the holidays. With changes in routine, diet and potentially time zones, quality sleep could be difficult to come by ...

  7. Defined benefit pension plan - Wikipedia

    en.wikipedia.org/wiki/Defined_benefit_pension_plan

    The benefit in a defined benefit pension plan is determined by a formula that can incorporate the employee's pay, years of employment, age at retirement, and other factors. A simple example is a dollars times service plan design that provides a certain amount per month based on the time an employee works for a company. For example, a plan ...

  8. Houston Texans wide receiver Tank Dell suffered dislocated ...

    www.aol.com/houston-texans-wide-receiver-tank...

    Houston Texans wide receiver Tank Dell is out for the rest of the season after suffering a dislocated knee, torn ACL and other damage, Texans head coach DeMeco Ryans said to reporters Monday.

  9. Raw pork sausage and bologna recalled: Over 10,000 pounds of ...

    www.aol.com/raw-pork-sausage-bologna-recalled...

    Nearly 10,000 pounds of raw pork sausage and bologna were included in two separate recalls, federal officials announced. Meat from Baltimore-based Impero Foods & Meats and Oklahoma-based Ralph's ...