| Claudia Sagastizábal | N6DGN9TJK3 | unknown | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#XF4R |
| Claudia Spiro | 4M2HQ5EHEJ | topic | open | Wikipedia List of people by Erdős number#86FY |
| Claudia Spiro | M1NGCBC1Y2 | topic | open | Wikipedia Claudia Spiro, Wikidata Q49389624 |
| Claudia Zaslavsky | 7GN1QW0811 | topic | open | Wikipedia Claudia Zaslavsky, Wikidata Q5129285 |
| Claudio Baiocchi | CC3PC76837 | topic | open | Wikipedia Claudio Baiocchi, Wikidata Q19958893 |
| Claudio Baiocchi | MC7FRPZJS3 | topic | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#8GEX |
| Claudio Bunster | JZ1XT7Z9R8 | unknown | open | Wikipedia List of contributors to general relativity#3CTU |
| Claudio Bunster | RTBY4JENMD | unknown | out_of_scope (a person, not an item of mathematics) | Wikidata Q440387, nLab Claudio Teitelboim |
| Claudio Carmeli | AH6P022PC5 | unknown | out_of_scope (a person, not an item of mathematics) | Wikidata Q62057140, nLab Claudio Carmeli |
| Claudio Procesi | B95QM40D22 | topic | open | Wikipedia List of Italian mathematicians#QIT8 |
| Claudio Procesi | GP8SQ8DMW2 | topic | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#FH3R |
| Claudio Procesi | WCFRNPNERT | topic | out_of_scope (a person, not an item of mathematics) | Wikidata Q1098136, nLab Claudio Procesi, Wikipedia Claudio Procesi |
| Claus A. Moser | YTTP1Q4KVK | topic | open | Wikipedia List of fellows of the American Statistical Association#Y3PY |
| Claus Michael Ringel | 8JA9Q85TPS | topic | open | Wikipedia Claus Michael Ringel, Wikidata Q14915113 |
| Claus Michael Ringel | NF13SSWM24 | topic | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#XKHL |
| Claus Montonen | 9B1CBBJQ88 | unknown | out_of_scope (a person, not an item of mathematics) | Wikidata Q23749629, nLab Claus Montonen |
| Claus Moser | 85KE8RE561 | topic | open | Wikipedia List of Jewish mathematicians#ID10 |
| Claus Moser, Baron Moser | PXP3Y4RX79 | topic | open | Wikipedia Claus Moser, Baron Moser, Wikidata Q1098410 |
| Claus P. Schnorr | D696AGFHWW | topic | open | Wikipedia Claus P. Schnorr, Wikidata Q92891 |
| Claus P. Schnorr | E88TCHEWYM | topic | open | Wikipedia List of people by Erdős number#MOIN, Wikipedia List of German mathematicians#CQDS |
| Claus Peter Ortlieb | DFEHFPH5SV | unknown | open | Wikipedia List of German mathematicians#7C45 |
| clause | AF46NT23PP | definition | open | Wikidata Q1228746, MathWorld Clause, Wikipedia Clause (logic) |
| Clausen function | X3GZ8YZ754 | definition | open | Wikipedia Clausen function, Wikidata Q823290 |
| Clausen's formula | 92F4ZWRXKT | statement | open | Wikipedia Generalized hypergeometric function#DJF8 |
| Clausen's formula | CR6CEP10KX | statement | open | Wikipedia Clausen's formula, Wikidata Q5129539 |
| Clausius inequality | GYDV6WQ30J | statement | open | Wikipedia Second law of thermodynamics#UI4V |
| Clausius theorem | 5NRRA0R9YD | statement | open | mathlib_1000 Q2428364, Wikidata Q2428364, thousand_plus Q2428364, Wikipedia Clausius theorem |
| Clausius theorem | MD8HW7H96H | statement | open | Wikipedia List of theorems#ATQ9 |
| Clausius–Clapeyron relation | RP9M13830V | definition | open | Wikipedia Clausius–Clapeyron relation, Wikidata Q745416 |
| Clausius–Duhem inequality | 20S3V0Q0JV | statement | open | Wikipedia List of inequalities#NG5T |
| Clausius–Duhem inequality | 51HT0GW1ZF | statement | open | Wikipedia Clausius–Duhem inequality, Wikidata Q5129547 |
| Clausius–Duhem inequality | 675C19HDD2 | statement | open | Wikipedia Continuum mechanics#V9XO |
| Clausius–Duhem inequality in terms of specific internal energy | WSSWA021Z7 | statement | open | Wikipedia Clausius–Duhem inequality#7QRP |
| Clausius–Duhem inequality in terms of the specific entropy | YV7BYTK461 | statement | open | Wikipedia Clausius–Duhem inequality#12ME |
| Clausius–Mossotti relation | 254A6EEND0 | object | open | Wikipedia Clausius–Mossotti relation, Wikidata Q899023 |
| Clavicylinder | H7H1X5JP3H | unknown | open | Wikipedia Ernst Chladni#ZS3W |
| Clavipectoral triangle | HMRN12QMHS | unknown | open | Wikipedia List of triangle topics#TKRK |
| Clavis mathematicae | 3ER3JW2CXC | definition | open | Wikipedia Clavis mathematicae, Wikidata Q11855399 |
| claw | 9DNHWEDM2C | definition | open | Wikipedia Glossary of graph theory#2B6L |
| Claw finding problem | JSMQVR7GYR | problem | open | Wikipedia Claw finding problem, Wikidata Q85752744 |
| claw graph | P9VK29WJ32 | unknown | open | Wikidata Q3115564, House of Graphs 500, MathWorld ClawGraph |
| Claw of Archimedes | PQ9K9MXY3J | unknown | open | Wikipedia List of things named after Archimedes#OZRP |
| claw-free graph | K7GXNFS8F1 | definition | open | Wikidata Q5129750, MathWorld Claw-FreeGraph, Wikipedia Claw-free graph |
| Claw-free permutation | 83DYH5NSK2 | definition | open | Wikipedia Claw-free permutation, Wikidata Q5129749 |
| Claw-free permutation | F9HWRVSTBB | definition | open | Wikipedia List of permutation topics#5R8X |
| Clawson point | 78XYNHY9CQ | definition | open | Wikidata Q2834709, MathWorld ClawsonPoint, Wikipedia Clawson point |
| Clawson point | P5F58912EJ | definition | open | Wikipedia List of triangle topics#K662 |
| Clay Córdova | 3YWBJRQBX6 | unknown | out_of_scope (a person, not an item of mathematics) | Wikidata Q102409877, nLab Clay Cordova |
| Clay Mathematics Institute | GKSQPM45YQ | definition | open | Wikipedia Clay Mathematics Institute, Wikidata Q857975 |
| Clay Mathematics Monographs | 4QRWTFG2ZE | definition | open | Wikipedia Clay Mathematics Monographs, Wikidata Q5129945 |
| Clay Research Award | HV6J533P2Q | definition | open | Wikipedia Clay Research Award, Wikidata Q1099219 |
| clay tablet | GAWRCFRKB3 | definition | open | Wikidata Q1570005, ProofWiki Definition:Babylonian_Clay_Tablets |
| Clayton copulas | R3AZ3HV4SM | statement | record (an item of a paper that no node asks for yet. The record keeps its edges in the record plane (corpus arxiv AX8.6)) | arXiv 2610.14318#S2FL |
| Clayton, David | XE0SBNZ6GD | unknown | open | Wikipedia List of statisticians#XHXM |
| clean | HKC9Y1Z35Z | definition | open | Wikipedia Glossary of commutative algebra#KUFI |
| Clean coefficient and diagnostic scales | N960QQKTV2 | statement | record (an item of a paper that no node asks for yet. The record keeps its edges in the record plane (corpus arxiv AX8.6)) | arXiv 2610.15202#EP5A |
| Clean containers | CBQVBM505N | definition | record (an item of a paper that no node asks for yet. The record keeps its edges in the record plane (corpus arxiv AX8.6)) | arXiv 2610.09162#AQO5 |
| Clean nonsmooth composite oracle | 8NYJKFRN2C | statement | record (an item of a paper that no node asks for yet. The record keeps its edges in the record plane (corpus arxiv AX8.6)) | arXiv 2610.18555#8ZGN |
| Clean ring | DQY6GQM3DE | definition | open | Wikipedia Clean ring, Wikidata Q24896331 |
| Clean smooth oracle | 1SWN28GWDM | statement | record (an item of a paper that no node asks for yet. The record keeps its edges in the record plane (corpus arxiv AX8.6)) | arXiv 2610.18555#4SO7 |
| Clean-ancilla reverse magic | TSMQZ3CFM0 | definition | record (an item of a paper that no node asks for yet. The record keeps its edges in the record plane (corpus arxiv AX8.6)) | arXiv 2610.02166#1A6E |
| Clean-ancilla reverse-magic entropy | JKJ22PGQDN | statement | record (an item of a paper that no node asks for yet. The record keeps its edges in the record plane (corpus arxiv AX8.6)) | arXiv 2610.02166#HQLK |
| Cleanness | C90DK21J3F | statement | record (an item of a paper that no node asks for yet. The record keeps its edges in the record plane (corpus arxiv AX8.6)) | arXiv 2610.01731#MC2D |
| Clearing denominators | 4YJR2SYV16 | statement | record (an item of a paper that no node asks for yet. The record keeps its edges in the record plane (corpus arxiv AX8.6)) | arXiv 2610.15887#UTHR |
| Clearing denominators | ESZ1XAQE6X | definition | open | Wikipedia Clearing denominators, Wikidata Q48971469 |
| clearly, can be easily shown | ZZQXANP9S4 | definition | open | Wikipedia Glossary of mathematical jargon#7MJA |
| Cleaver | 7YT8S7GEBR | definition | open | Wikipedia Cleaver (geometry), Wikidata Q5131002 |
| Cleaver (geometry) | PAYC4D814J | definition | open | Wikipedia List of triangle topics#95N0 |
| Clebsch cubic | 4W5F3E8XMS | definition | open | Wikipedia List of mathematical shapes#IBBO |
| Clebsch graph | 4N8QBTF5ED | definition | open | Wikidata Q367494, House of Graphs 975, MathWorld ClebschGraph, Wikipedia Clebsch graph |
| Clebsch invariant | SSJV6KX84A | definition | open | Wikipedia Glossary of invariant theory#PYVU |
| Clebsch representation | B7WQM823B5 | definition | open | Wikipedia Clebsch representation, Wikidata Q28456923 |
| Clebsch surface | 38AMXP07FM | definition | open | Wikipedia List of surfaces#0OSB |
| Clebsch surface | ADMJ37WT5T | concept | open | Wikidata Q5131020, MathWorld ClebschDiagonalCubic, Wikipedia Clebsch surface |
| Clebsch surface | M89K1CWGEQ | definition | open | Wikipedia List of complex and algebraic surfaces#R8XD |
| Clebsch--Gordan multiplicities | MYPD9RTP18 | statement | record (an item of a paper that no node asks for yet. The record keeps its edges in the record plane (corpus arxiv AX8.6)) | arXiv 2610.04099#JV0C |
| Clebsch–Gordan coefficient | B7RB5TPBVM | concept | open | Wikidata Q898619, MathWorld Clebsch-GordanCoefficient, Wikipedia Clebsch–Gordan coefficients |
| Clebsch–Gordan coefficients | 511XBWJPYC | definition | open | Wikipedia Glossary of Lie groups and Lie algebras#GD3C |
| CLEFIA | 53H6VJ92HA | definition | open | Wikipedia CLEFIA, Wikidata Q978814 |
| Clelia Grillo Borromeo | 2GEEMT4E09 | topic | open | Wikipedia Clelia Grillo Borromeo, Wikidata Q4940170 |
| Clemency Montelle | A71EGX5433 | topic | open | Wikipedia Clemency Montelle, Wikidata Q99441392 |
| Clemens conjecture | ZTQMDG6N6D | statement | open | Wikipedia Enumerative geometry#8CW3 |
| Clement W. H. Lam | QVWYGDTB9Z | topic | open | Wikipedia Clement W. H. Lam, Wikidata Q1100286 |
| Clement's theorem concerning the twin primes | YNS26A6GDD | statement | open | Wikipedia Table of congruences#95JS |
| Clenshaw algorithm | B9RT9NY04A | definition | open | Wikipedia Clenshaw algorithm, Wikidata Q1067155 |
| Clenshaw–Curtis quadrature | ABJ7B78T70 | definition | open | Wikipedia Clenshaw–Curtis quadrature, Wikidata Q5131618 |
| Clenshaw–Curtis quadrature | G86485Z9AP | definition | open | Wikipedia List of numerical analysis topics#YPLV |
| Cleo | TZ9E3YVQD0 | topic | open | Wikipedia Cleo (mathematician), Wikidata Q132818621 |
| Cleo Youtz | SN93M329AP | topic | open | Wikipedia Cleo Youtz, Wikidata Q110391902 |
| Cleomedes | 53AXV5GSM3 | unknown | open | Wikipedia List of Greek mathematicians#O5GK |
| Cleota Gage Fry | WHHZ556J8Q | topic | open | Wikipedia Cleota Gage Fry, Wikidata Q93243390 |
| Cleve Moler | 7QEGPES1NN | topic | open | Wikipedia Cleve Moler, Wikidata Q92871 |
| Cleve Moler | BCFWW04RZC | topic | open | Wikipedia List of people by Erdős number#OIWD, Wikipedia List of numerical analysis topics#Q1D5 |
| Click analytics | QN9G06Q7T9 | definition | open | Wikipedia Click analytics, Wikidata Q5132429 |
| Client update | RAP4WDEQC3 | statement | record (an item of a paper that no node asks for yet. The record keeps its edges in the record plane (corpus arxiv AX8.6)) | arXiv 2610.13631#5PBI |
| Client-side encryption | 4KR38KXFPQ | definition | open | Wikipedia Client-side encryption, Wikidata Q5132476 |
| Client-specific refresh | QYPB5B9X5D | statement | record (an item of a paper that no node asks for yet. The record keeps its edges in the record plane (corpus arxiv AX8.6)) | arXiv 2610.15543#OCVH |
| Cliff's delta | 9WS8NH2BBP | unknown | open | Wikipedia Effect size#LW97 |
| Clifford algebra | 4BJ6XFZM21 | definition | open | Wikipedia Glossary of ring theory#4SYD |
| Clifford algebra | 5YS5JHDEKV | definition | open | Wikipedia Glossary of areas of mathematics#QWHR |