| Demographics of Tehran | FCRB4MR3RS | definition | open | Wikipedia Demographics of Tehran, Wikidata Q18205768 |
| Demographics of the Middle East | QWSAAH2732 | definition | open | Wikipedia Demographics of the Middle East, Wikidata Q5256114 |
| Demographics of the Netherlands | 97Q9C766RD | definition | open | Wikipedia Demographics of the Netherlands, Wikidata Q980038 |
| Demographics of the Republic of Artsakh | XAF365XRVZ | definition | open | Wikipedia Demographics of the Republic of Artsakh, Wikidata Q3012323 |
| Demographics of the Supreme Court of the United States | R72N0RJ9ED | definition | open | Wikipedia Demographics of the Supreme Court of the United States, Wikidata Q5256118 |
| Demographics of the United States | FE9CCYD7D5 | definition | open | Wikipedia Demographics of the United States, Wikidata Q1965974 |
| Demographics of the Victorian era | 4H67Y74G5E | definition | open | Wikipedia Demographics of the Victorian era, Wikidata Q117354597 |
| Demographics of the world | ZKGJ9KV93G | definition | open | Wikipedia Demographics of the world, Wikidata Q5256120 |
| Demographics of Togo | HSZ32AFZ79 | definition | open | Wikipedia Demographics of Togo, Wikidata Q2983227 |
| Demographics of Tunisia | PV6PPB314F | definition | open | Wikipedia Demographics of Tunisia, Wikidata Q2587341 |
| Demographics of Turkey | Q74TCYE8BR | definition | open | Wikipedia Demographics of Turkey, Wikidata Q1185988 |
| Demographics of Ukraine | HPXSEMFF4E | definition | open | Wikipedia Demographics of Ukraine, Wikidata Q1340635 |
| Demographics of West Bank | P5TFR0QQFN | unknown | open | Wikipedia Demographics of Palestine#TIEZ |
| Demographics of Western Norway | GYYWB3HS67 | definition | open | Wikipedia Demographics of Western Norway, Wikidata Q5256102 |
| Demography | 1RKC14AF0A | topic | open | Wikipedia List of statistics articles#MJZO |
| Demography | 28547BREEJ | topic | open | Wikipedia Demography, Wikidata Q37732 |
| Demography | BVQAWVN756 | topic | open | Wikipedia List of fields of application of statistics#R7JY |
| Demon algorithm | PMS1NS605H | unknown | open | Wikipedia List of algorithms#Q8VK |
| Demonic composition | 4PJSB6MZC8 | definition | open | Wikipedia Demonic composition, Wikidata Q5256258 |
| demonstration | J1HG1RNMVQ | definition | open | Wikipedia Glossary of logic#K4FJ |
| demonstrative | 6F07ABAF6G | definition | open | Wikipedia Glossary of logic#WRQR |
| DeMorgan | TFKFKSZTBQ | statement | open | lebl_ra ch-vol1-intro.tex#thm-1 |
| DeMorgan's theorem | 4X3X5BPA52 | concept | open | lebl_ra index/11.9.1/demorgan-s-theorem |
| Dempster's rule of combination | G7W2ZF6J65 | unknown | open | Wikipedia Dempster–Shafer theory#R4NJ |
| Dempster, Arthur P. | XQ8M138QGX | topic | open | Wikipedia List of statisticians#BVP2 |
| Dempster–Shafer theory | AY4K4K7422 | definition | open | Wikipedia List of probability topics#NKEM |
| Dempster–Shafer theory | MF7CFNM3CQ | definition | open | Wikipedia Dempster–Shafer theory, Wikidata Q285997 |
| Dempwolff group | TEW9VPVSKQ | definition | open | Wikipedia Dempwolff group, Wikidata Q5256410 |
| DEN0DWTBFS | DEN0DWTBFS | 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 2610.18219#YDAO |
| DEN0PKJR72 | DEN0PKJR72 | exercise | open | lebl_diffyqs ch-first-order-ode.tex#exercise-44 |
| denary | KZNRPPERHX | definition | open | Wikipedia Glossary of invariant theory#Z3LM |
| Denavit–Hartenberg parameters | RD68XW897G | definition | open | Wikipedia Denavit–Hartenberg parameters, Wikidata Q1186877 |
| Dendriform algebra | F5XVPSJDK8 | unknown | open | Wikipedia List of algebras#A3IR |
| Dendrite | T8124FCFTC | definition | open | Wikidata Q5256671, MathWorld Dendrite, Wikipedia Dendrite (mathematics) |
| Dendrogram | A6XRPVYYN5 | definition | open | Wikipedia Dendrogram, Wikidata Q1957903 |
| Dendrogram | ABJKV3GRP9 | definition | open | Wikipedia List of statistics articles#63PF |
| Dendroid | 77DGC2N53H | definition | open | Wikipedia Dendroid (topology), Wikidata Q5256753 |
| Dendroidal | 9G6X4C2MJ4 | definition | open | Wikipedia Glossary of category theory#COAQ |
| dendroidal set | RHCCXCWPJZ | definition | open | Wikidata Q5256755, nLab dendroidal set, Wikipedia Dendroidal set |
| Denecker and Vennekens | G8TAMAC1AR | 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 2609.26337#06A9 |
| DENFX282EK | DENFX282EK | 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 1612.08394#W1MN |
| Deng Xi | N0YAS0G14H | topic | open | Wikipedia Deng Xi, Wikidata Q2495593 |
| Deng--Hu--Zhang | 4C6F59AMQ7 | 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 2610.03310#U280 |
| Deng--Hu--Zhang | C2M9T1EJTV | 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 2610.03310#373P |
| Deng-Hani-Ma | 5RG8MN6BNN | 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 2609.38061#2PFV |
| Dengo | ZJ2X7S4ACX | unknown | open | Wikipedia Cryptonomicon#L09M |
| Deniable authentication | FYNPKE46SD | definition | open | Wikipedia Deniable authentication, Wikidata Q5257019 |
| Deniable encryption | N03SSXXKJK | definition | open | Wikipedia Deniable encryption, Wikidata Q2657061 |
| denial | 5H36V06DM0 | concept | open | hott_book index/C.4/denial |
| denial | ANSY4G5VSP | concept | open | hott_book index/9.4/denial |
| denial | HGQSQ6QD84 | concept | open | hott_book index/C.1.5/denial |
| denial | YS4PNR00VJ | concept | open | hott_book index/9.8/denial |
| Denis Auroux | 55WPPVHFPV | topic | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#8EFJ |
| Denis Auroux | EMYFXWNJHD | topic | open | Wikipedia List of geometers#RVXT |
| Denis Auroux | TYJ9FZHP5Z | topic | out_of_scope (a person, not an item of mathematics) | Wikidata Q2296424, nLab Denis Auroux, Wikipedia Denis Auroux |
| Denis Blackmore | J9YY4WSJTS | topic | open | Wikipedia Denis Blackmore, Wikidata Q5257111 |
| Denis Cosgrove | VJNZRC6CQ9 | unknown | open | Wikipedia List of University of California, Los Angeles people#L65M |
| Denis Diderot | 1ZBVEJGAWW | unknown | out_of_scope (a person, not an item of mathematics) | Wikidata Q448, nLab Denis Diderot |
| Denis Henrion | S8P9EDWQQ7 | topic | open | Wikipedia Denis Henrion, Wikidata Q3022732 |
| Denis Higgs | 764VV4KQXN | topic | open | Wikipedia Denis Higgs, Wikidata Q5257287 |
| Denis Miéville | HAB2GTW4PP | topic | open | Wikipedia Denis Miéville, Wikidata Q426867 |
| Denis Osin | 54PBGJM84E | unknown | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#9F1T |
| Denis Sargan | 6EFFHQEP53 | topic | open | Wikipedia Denis Sargan, Wikidata Q5257503 |
| Denis Serre | DQ8BMF4ZS2 | topic | open | Wikipedia Denis Serre, Wikidata Q3022929 |
| Denis Talay | RVF1N3RN9F | unknown | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#XL7Y |
| Denis-Charles Cisinski | Q2PPTP4ESR | topic | open | Wikipedia Denis-Charles Cisinski, Wikidata Q102254092 |
| Denise Kirschner | QV768CC6DE | topic | open | Wikipedia Denise Kirschner, Wikidata Q88797604 |
| Denise Lievesley | XPKTRPTGKV | unknown | open | Wikipedia List of fellows of the American Statistical Association#KBM8 |
| Denisyuk polynomials | SMSV2TNN0D | definition | open | Wikipedia Denisyuk polynomials, Wikidata Q5257854 |
| Denjoy theorem | M2AD0T074B | statement | open | Wikipedia List of theorems#9VLF |
| Denjoy weights | HASVRHQMF2 | 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 2610.21725#8SCH |
| Denjoy's theorem on rotation number | NWTNEQ3Y1P | statement | open | Wikipedia Denjoy's theorem on rotation number, Wikidata Q4454940 |
| Denjoy-Wolff Theorem | GBVPG6Y8C3 | 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 2610.00312#U1HT |
| Denjoy–Carleman theorem | K0PX6DGFY9 | statement | open | Wikipedia Quasi-analytic function#2EYE |
| Denjoy–Carleman theorem | M8V6P8DZY7 | definition | open | Wikipedia List of theorems#5V64 |
| Denjoy–Carleman–Ahlfors theorem | MRZK8EMAJQ | statement | open | Wikipedia Denjoy–Carleman–Ahlfors theorem, Wikidata Q17097849 |
| Denjoy–Koksma inequality | TZZ6HTXRKG | statement | open | Wikipedia Denjoy–Koksma inequality, Wikidata Q5257887 |
| Denjoy–Luzin theorem | CPZ9Q6ZGRN | statement | open | mathlib_1000 Q4736422, Wikidata Q4736422, thousand_plus Q4736422, Wikipedia Denjoy–Luzin theorem |
| Denjoy–Luzin–Saks theorem | 7QGG0MNP5B | statement | open | Wikipedia Denjoy–Luzin–Saks theorem, Wikidata Q5257889 |
| Denjoy–Riesz theorem | 872R5JYHPP | statement | open | Wikipedia Denjoy–Riesz theorem, Wikidata Q25304231 |
| Denjoy–Riesz theorem | QS63Q3MA8M | statement | open | Wikipedia Analyst's traveling salesman theorem#0XL7 |
| Denjoy–Wolff theorem | 2TDY633C25 | statement | open | Wikipedia Denjoy–Wolff theorem, Wikidata Q5257888 |
| Denjoy–Young–Saks theorem | 5ENF0QEF44 | statement | open | Wikipedia List of theorems#EAM1 |
| Denjoy–Young–Saks theorem | GDQ5NXSW9N | statement | open | Wikidata Q5257890, MathWorld Denjoy-Saks-YoungTheorem, Wikipedia Denjoy–Young–Saks theorem |
| Denmark | NC39F9WJYB | unknown | out_of_scope (a person, not an item of mathematics) | Wikidata Q35, ProofWiki Mathematician:Mathematicians/Sorted_By_Nation/Denmark |
| Dennis Arnold Hejhal | KNCDKMJDDR | topic | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#WB7M |
| Dennis Babbage | EYDXFMRF5K | topic | open | Wikipedia Dennis Babbage, Wikidata Q1188959 |
| Dennis Barden | 1CYZMMZ676 | topic | open | Wikipedia Dennis Barden, Wikidata Q5258181 |
| Dennis DeTurck | 2WR1HQPP81 | topic | open | Wikipedia Dennis DeTurck, Wikidata Q4411209 |
| Dennis DeTurck | HEMRD4W3MB | topic | open | Wikipedia List of people by Erdős number#IFRT |
| Dennis Dieks | 8F24JP5CQS | unknown | out_of_scope (a person, not an item of mathematics) | Wikidata Q5258345, nLab Dennis Dieks |
| Dennis Gaitsgory | F4BR4R7YY7 | topic | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#JKAG |
| Dennis Gaitsgory | PD387446S5 | topic | out_of_scope (a person, not an item of mathematics) | Wikidata Q950863, nLab Dennis Gaitsgory, Wikipedia Dennis Gaitsgory |
| Dennis Hejhal | 20XEYG2SFB | topic | open | Wikipedia Dennis Hejhal, Wikidata Q1189188 |
| Dennis Hejhal | 2A278XSEKJ | topic | open | Wikipedia List of people by Erdős number#7HUL |
| Dennis Johnson | WKDCK9AQ83 | topic | open | Wikipedia Dennis Johnson (composer), Wikidata Q2674647 |
| Dennis K.J. Lin | M7B9NK4621 | topic | open | Wikipedia List of fellows of the American Statistical Association#YJ89 |
| Dennis K.J. Lin | XM2VP5JJCH | topic | open | Wikipedia Dennis K.J. Lin, Wikidata Q99162239 |
| Dennis Lindley | H05K07YHWJ | unknown | open | Wikipedia List of fellows of the American Statistical Association#8IO3 |
| Dennis Ritchie | 4MHMTVR060 | unknown | open | Wikipedia List of people by Erdős number#RZ9Z |