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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 preceding sentences in the sequence by a rule of inference. The last sentence in the sequence is a theorem of a formal system. The notion of theorem is not in general effective, therefore there may be no method by which we can always find a proof of a given sentence or determine that none exists. The concept of natural deduction is a generalization of the concept of proof.[1] |
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 preceding sentences in the sequence by a rule of inference. The last sentence in the sequence is a theorem of a formal system. The notion of theorem is not in general effective, therefore there may be no method by which we can always find a proof of a given sentence or determine that none exists. The concept of natural deduction is a generalization of the concept of proof.[1] |
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[[ar:برهان رياضي]] |
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[[ca:Demostració matemàtica]] |
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[[cs:Matematický důkaz]] |
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[[de:Beweis (Mathematik)]] |
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[[el:Μαθηματική απόδειξη]] |
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[[eo:Matematika pruvo]] |
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[[fa:برهان (ریاضی)]] |
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[[fr:Démonstration]] |
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[[he:הוכחה]] |
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[[id:Pembuktian Matematika]] |
[[id:Pembuktian Matematika]] |
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[[is:Stærðfræðileg sönnun]] |
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[[it:Dimostrazione matematica]] |
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[[ja:証明]] |
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[[ka:მათემატიკური დამტკიცება]] |
[[ka:მათემატიკური დამტკიცება]] |
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[[ko:증명]] |
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[[la:Demonstratio mathematica]] |
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[[lt:Matematinis įrodymas]] |
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[[mk:Математички доказ]] |
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[[nl:Wiskundig bewijs]] |
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[[no:Matematisk bevis]] |
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[[pl:Dowód (matematyka)]] |
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[[pt:Prova matemática]] |
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[[ru:Математическое доказательство]] |
[[ru:Математическое доказательство]] |
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[[simple:Mathematical proof]] |
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[[sl:Matematični dokaz]] |
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[[sv:Matematiskt bevis]] |
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[[ta:கணித நிறுவல்]] |
[[ta:கணித நிறுவல்]] |
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[[tr:Matematiksel tanıt]] |
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[[uk:Доведення]] |
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[[vi:Chứng minh toán học]] |
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[[zh-classical:證明]] |
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[[zh-yue:數學證明]] |
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ro moi lu'i ro mupli poi zasti pu le se detri be li 10:30, 29 ly. ze 2009
ni'o lo cipra goi ko'a cu na'eci'imei porsi be lo jufra to se cmene lo drasu'a mekso vi lo drasu'a bangu toi noi me lo aksioma .a lo se lojycpa be fi lo purci jufra pe le porsi .i le romoi jufra pe le porsi cu cmacrteorema ci'e le drasu'a ciste