enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Po-Shen Loh - Wikipedia

    en.wikipedia.org/wiki/Po-Shen_Loh

    Loh's math coaching career started in 2002 when he first served as an assistant coach at the US national IMO training camp, Mathematical Olympiad Summer Program (MOSP). In 2010, Loh was appointed deputy leader Team USA for the IMO, [10] and in 2014 he was appointed leader [11] [12] and was the national coach for 9 years, until 2023. [13]

  3. Cantor's diagonal argument - Wikipedia

    en.wikipedia.org/wiki/Cantor's_diagonal_argument

    Georg Cantor published this proof in 1891, [1] [2]: 20– [3] but it was not his first proof of the uncountability of the real numbers, which appeared in 1874. [ 4 ] [ 5 ] However, it demonstrates a general technique that has since been used in a wide range of proofs, [ 6 ] including the first of Gödel's incompleteness theorems [ 2 ] and ...

  4. Proof of work - Wikipedia

    en.wikipedia.org/wiki/Proof_of_work

    Proof of work (also written as proof-of-work, an abbreviated PoW) is a form of cryptographic proof in which one party (the prover) proves to others (the verifiers) that a certain amount of a specific computational effort has been expended. [1] Verifiers can subsequently confirm this expenditure with minimal effort on their part.

  5. List of incomplete proofs - Wikipedia

    en.wikipedia.org/wiki/List_of_incomplete_proofs

    The first complete proof was given by Hilbert in 1896. In 1879, Alfred Kempe published a purported proof of the four color theorem, whose validity as a proof was accepted for eleven years before it was refuted by Percy Heawood. Peter Guthrie Tait gave another incorrect proof in 1880 which was shown to be incorrect by Julius Petersen in 1891.

  6. Historical method - Wikipedia

    en.wikipedia.org/wiki/Historical_method

    Historical method is the collection of techniques and guidelines that historians use to research and write histories of the past. Secondary sources, primary sources and material evidence such as that derived from archaeology may all be drawn on, and the historian's skill lies in identifying these sources, evaluating their relative authority, and combining their testimony appropriately in order ...

  7. Provenance - Wikipedia

    en.wikipedia.org/wiki/Provenance

    In archival practice, proof of provenance is provided by the operation of control systems that document the history of records kept in archives, including details of amendments made to them. The authority of an archival document or set of documents of which the provenance is uncertain, because of gaps in the recorded chain of custody, will be ...

  8. Recorded history - Wikipedia

    en.wikipedia.org/wiki/Recorded_history

    The question of what constitutes history, and whether there is an effective method for interpreting recorded history, is raised in the philosophy of history as a question of epistemology. The study of different historical methods is known as historiography , which focuses on examining how different interpreters of recorded history create ...

  9. Zero-knowledge proof - Wikipedia

    en.wikipedia.org/wiki/Zero-knowledge_proof

    In cryptography, a zero-knowledge proof is a protocol in which one party (the prover) can convince another party (the verifier) that some given statement is true, without conveying to the verifier any information beyond the mere fact of that statement's truth. [1]