Search results
Results from the WOW.Com Content Network
Larger ordinals rely on replacement less directly. For example, ω 1, the first uncountable ordinal, can be constructed as follows – the set of countable well orders exists as a subset of () by separation and powerset (a relation on A is a subset of , and so an element of the power set ().
In logic, a rule of replacement [1] [2] [3] is a transformation rule that may be applied to only a particular segment of an expression. A logical system may be constructed so that it uses either axioms , rules of inference , or both as transformation rules for logical expressions in the system.
In propositional logic, material implication [1] [2] is a valid rule of replacement that allows a conditional statement to be replaced by a disjunction in which the antecedent is negated. The rule states that P implies Q is logically equivalent to not- P {\displaystyle P} or Q {\displaystyle Q} and that either form can replace the other in ...
A single-displacement reaction, also known as single replacement reaction or exchange reaction, is an archaic concept in chemistry. It describes the stoichiometry of some chemical reactions in which one element or ligand is replaced by atom or group. [1] [2] [3] It can be represented generically as:
Exportation [1] [2] [3] [4] is a valid rule of replacement in propositional logic.The rule allows conditional statements having conjunctive antecedents to be replaced ...
The ship wherein Theseus and the youth of Athens returned from Crete had thirty oars, and was preserved by the Athenians down even to the time of Demetrius Phalereus, for they took away the old planks as they decayed, putting in new and strong timber in their places, insomuch that this ship became a standing example among the philosophers, for ...
Only if the two products satisfy the three conditions, will they be classified as close substitutes according to economic theory. The opposite of a substitute good is a complementary good, these are goods that are dependent on another. An example of complementary goods are cereal and milk. An example of substitute goods are tea and coffee.
Replacement cost coverage is designed so the policy holder will not have to spend more money to get a similar new item and that the insurance company does not pay for intangibles. [4] For example: when a television is covered by a replacement cost value policy, the cost of a similar television which can be purchased today determines the ...