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formal proof

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  • Formal proof — See also: mathematical proof, proof theory, and axiomatic system A formal proof or derivation is a finite sequence of sentences (called well formed formulas in the case of a formal language) each of which is an axiom or follows from the… …   Wikipedia

  • Proof theory — is a branch of mathematical logic that represents proofs as formal mathematical objects, facilitating their analysis by mathematical techniques. Proofs are typically presented as inductively defined data structures such as plain lists, boxed… …   Wikipedia

  • Proof — may refer to: * A rigorous, compelling argument ** Formal proof ** Mathematical proof ** Proof theory, a branch of mathematical logic that represents proofs as formal mathematical objects ** Logical argument ** Evidence (law), tested evidence or… …   Wikipedia

  • Proof-Carrying Code — (PCC) is a software mechanism that allows a host system to verify properties about an application via a formal proof that accompanies the application s executable code. The host system can compare the conclusions of the proof to its own security… …   Wikipedia

  • Formal methods — In computer science and software engineering, formal methods are particular kind of mathematically based techniques for the specification, development and verification of software and hardware systems.cite web|author=R. W. Butler|title=What is… …   Wikipedia

  • Proof of impossibility — A proof of impossibility, sometimes called a negative proof or negative result , is a proof demonstrating that a particular problem cannot be solved, or cannot be solved in general. Often proofs of impossibility have put to rest decades or… …   Wikipedia

  • Formal — The term formal has a number of uses, including:General*relating to formality *opposite of informalocial* Formal occasion ** Formal attire worn on such occasions ** Formals are particular meals at some British universities ** In Australian or… …   Wikipedia

  • Formal verification — In the context of hardware and software systems, formal verification is the act of proving or disproving the correctness of intended algorithms underlying a system with respect to a certain formal specification or property, using formal methods… …   Wikipedia

  • Formal specification — A formal specification is a mathematical description of software or hardware that may be used to develop an implementation. It describes what the system should do, not (necessarily) how the system should do it. Given such a specification, it is… …   Wikipedia

  • Proof-theoretic semantics — is an approach to the semantics of logic that attempts to locate the meaning of propositions and logical connectives not in terms of interpretations, as in Tarskian approaches to semantics, but in the role that the proposition or logical… …   Wikipedia

  • proof of debt — United Kingdom The form (proof of debt general form) on which a creditor submits details of its claim in a liquidation. In an administration, there is no prescribed proof of debt form but in practice administrators adopt the format of the proof… …   Law dictionary

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