weakening

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weakening (monotonicity) A rule of reasoning that implies that from a clause such as PQ (where ⇒ should be interpreted as “implies” and P and Q are atoms) one can deduce both PRQ and PQR (where ∨ signifies “or”). In other words, additional antecedents can always be added to a clause in a deduction.

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weakening In synoptic meteorology, a decrease in pressure gradient around a pressure system over time. Changes of this kind bring about a weakening of the winds. See also intensification.

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weakening In synoptic meteorology, a decrease in pressure gradient around a pressure system over time. Changes of this kind bring about a weakening of the winds. See also INTENSIFICATION.

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