Logical Assertion

A logical assertion is a statement that asserts that a certain premise is true, and is useful for statements in proof. It is equivalent to a sequent with an empty antecedent.

For example, if p = "x is even", the implication

is thus true. We can also write this using the logical assertion symbol, as

Famous quotes containing the words logical and/or assertion:

    I see mysteries and complications wherever I look, and I have never met a steadily logical person.
    Martha Gellhorn (b. 1908)

    Flowers and fruits are always fit presents; flowers, because they are a proud assertion that a ray of beauty outvalues all of the utilities of the world. These gay natures contrast with the somewhat stern countenance of ordinary nature: they are like music heard out of a work-house.
    Ralph Waldo Emerson (1803–1882)