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A: If what you want is to do Y, you should ask that question without pre-supposing the use of a method that may not be appropriate. Questions of this form often indicate a person who is not merely ignorant about X, but confused about what problem Y they are solving and too fixated on the details of their particular situation.
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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.
S x: symptoms surgery (though deemed by some as inappropriate) S 1: first heart sound: S 2: second heart sound: S 3: third heart sound S 4: fourth heart sound S&O: salpingo-oophorectomy Sb: Scholar batch SAAG: serum–ascites albumin gradient SAB: staphylococcal bacteremia spontaneous abortion (that is, miscarriage) SAD: seasonal affective ...
For the second absorption law, x ∨ (x ∧ y) = x, start with the left diagram for x∧y and note that shading the whole of the x circle results in just the x circle being shaded, since the previous shading was inside the x circle. The double negation law can be seen by complementing the shading in the third diagram for ¬x, which shades the x ...
Associative operations are abundant in mathematics; in fact, many algebraic structures (such as semigroups and categories) explicitly require their binary operations to be associative. However, many important and interesting operations are non-associative; some examples include subtraction, exponentiation, and the vector cross product.
whenever x > y and y > z, then also x > z whenever x ≥ y and y ≥ z, then also x ≥ z whenever x = y and y = z, then also x = z. More examples of transitive relations: "is a subset of" (set inclusion, a relation on sets) "divides" (divisibility, a relation on natural numbers) "implies" (implication, symbolized by "⇒", a relation on ...
Georgia Senate Republicans recommended on Friday that the state write laws banning transgender girls and women from participating in high school and college sports, setting the stage for action in ...