| Orbital node | YC4E6QAVYJ | definition | open | Wikipedia Orbital node, Wikidata Q507546 |
| Orbital overlap | NE5QVVRF1J | definition | open | Wikipedia Orbital overlap, Wikidata Q1838870 |
| Orbital plane | 615SE89NRM | definition | open | Wikipedia Orbital plane, Wikidata Q800358 |
| Orbital plane of reference | SKTFN23TAN | definition | open | Wikipedia Orbital plane of reference, Wikidata Q1364182 |
| Orbital resonance | X03HQRXA3W | definition | open | Wikipedia Orbital resonance, Wikidata Q271561 |
| Orbital stability | WWVYMZGGC5 | definition | open | Wikipedia Orbital stability, Wikidata Q7100094 |
| Orbits on triples from the two-point stabilizer | B330HE1E1Y | 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 2610.15340#UTH3 |
| Orbitwise characterization | EVETRXB138 | 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 2510.05499#579E |
| Orbitwise parameterization of a complete layer | X7KRXC9G3G | 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 2609.25987#AARE |
| orbit–stabilizer theorem | TXN5PTV5C3 | statement | open | Wikidata Q800350, ProofWiki Orbit-Stabilizer_Theorem |
| Orbot | 9R7Y2FNJD0 | definition | open | Wikipedia Orbot, Wikidata Q16927751 |
| Orchard-planting problem | DMSX47YGVF | problem | open | Wikipedia List of unsolved problems in mathematics#CFCT |
| Orchard-planting problem | TJKRDSKN7X | problem | open | Wikidata Q7100169, MathWorld Orchard-PlantingProblem, Wikipedia Orchard-planting problem |
| Orchid International College | HCDS38V8KA | unknown | open | Wikipedia Tribhuvan University#R4AS |
| order | 3V0G6X2WEA | definition | open | Wikipedia Glossary of classical algebraic geometry#ZYSR |
| order | 3YTPMH3ZBW | unknown | open | mathlib_undergrad Single Variable Real Analysis > Real numbers > order, Mathlib Real.linearOrder |
| Order | 8EZD0G42V5 | definition | open | Wikipedia Order (journal), Wikidata Q5693708 |
| Order | AS462W5HWH | definition | open | Wikipedia Order (mathematics), Wikidata Q1820515 |
| order | BXQRYRBX7G | definition | open | Wikipedia Glossary of graph theory#IFCD |
| order | CY4PGESYVN | definition | open | Wikipedia Glossary of invariant theory#7S6L |
| order | K17F1MARXY | definition | node (a node has the same Wikidata item as the row) | Wikidata Q589491, MathWorld GroupOrder, nLab order of a group, ProofWiki Definition:Order_of_Group_Element, Wikipedia Order (group theory) |
| order | KBZ6EM1G9N | unknown | open | mathlib_undergrad Numerical Analysis > Ordinary differential equations > order |
| order | RV2SGABWB4 | definition | open | Wikipedia Glossary of ring theory#FVO2 |
| Order | VAWCYM68T0 | definition | open | Wikipedia Order (ring theory), Wikidata Q1431456 |
| Order (logic) | S7T2R522FN | unknown | open | Wikipedia Higher-order logic#H0W6 |
| Order (power series) | 48EAV5G441 | unknown | open | Wikipedia Power series#PU53 |
| Order and additivity on a fixed partition | 5TNA5JWK5N | 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 2610.08821#RNC9 |
| order and index | 1QQA4JB5YW | 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 2610.05914#SCMQ |
| Order at the Nishimori temperature | GDMNB70MVC | 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 2609.37479#N5YV |
| Order automorphism | 7AYBMJFYNY | definition | open | Wikipedia List of group theory topics#WTIU |
| Order Axioms | H5M9MC2WM8 | statement | open | ernst_ibl MAAPressVersion/AxiomsRealNumbers.tex#axiom:order axioms |
| Order bound dual | FKC7EJWD2R | definition | open | Wikipedia Order bound dual, Wikidata Q96397657 |
| Order certificate | PAD5B20RR9 | 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 2610.02276#7SXZ |
| Order complete | WDGME1R9M5 | definition | open | Wikipedia Order complete, Wikidata Q96397658 |
| order complexes as CL-complexes | QKB0K2M69Y | 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 2610.15099#QTBC |
| Order condition | ZPRGTCTA18 | unknown | open | Wikipedia Simultaneous equations model#IQZL |
| Order convergence | BRX8K36VQF | definition | open | Wikipedia Order convergence, Wikidata Q96397660 |
| Order decomposition | 3PCV7Q317Q | 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 2610.13063#G9OZ |
| order dimension | ZKSW5QZJ53 | definition | open | Wikidata Q7100431, MathWorld PosetDimension, Wikipedia Order dimension |
| Order Dropping Map | P4MEK9XGA9 | 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 1711.00219#W4RT |
| Order dual | TY66N2CN3V | definition | open | Wikipedia Order dual (functional analysis), Wikidata Q96397662 |
| Order embedding | CBJKJBPHME | definition | open | Wikipedia List of order theory topics#IT76 |
| Order embedding | EX23GA2Q7C | definition | open | Wikipedia Order embedding, Wikidata Q3796691 |
| Order isomorphism | 3DR1XHRQ8Q | definition | open | Wikipedia List of order theory topics#FIYE |
| Order isomorphism | 5X42BCQP16 | definition | open | Wikipedia Order isomorphism, Wikidata Q997521 |
| Order mass | Q17W16W0PR | 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 2610.13063#EH7S |
| Order of $2$ modulo prime squares | RCS7CPXSDD | 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 2610.07214#EGGT |
| Order of a graph | MH1C76AYTX | unknown | open | Wikipedia Graph (discrete mathematics)#ABK9 |
| order of a group | CVJHBEPZAK | definition | deferred (the item has its own article, page 493527) | Wikipedia Glossary of group theory#886G |
| order of a group element | W2Y9NM3MZ7 | definition | deferred (the item has its own article, page 493527) | Wikipedia Glossary of group theory#NCRE |
| Order of a kernel | FYV2XARRKP | definition | open | Wikipedia Order of a kernel, Wikidata Q7100566 |
| Order of a kernel | YPCFJM7KXH | definition | open | Wikipedia List of statistics articles#A2GT |
| Order of a meromorphic function | V6C64RCVBW | definition | open | napkin tex/riemann-surface/riemann-roch.tex#definition-1 |
| order of a pole | 5WJXX2MEQN | concept | open | lebl_scv index/B/order-of-a-pole |
| Order of a polynomial | XK5Z7VZF74 | unknown | open | Wikidata Q21072054, MathWorld PolynomialOrder |
| Order of a tensor | NVPW5X58DY | definition | open | Wikipedia Glossary of tensor theory#TE7I |
| order of a zero | T4K2Z9AKEK | concept | open | lebl_scv index/B/order-of-a-zero |
| Order of accuracy | 6JQCDA0Q9T | definition | open | Wikipedia Order of accuracy, Wikidata Q7100567 |
| order of an element | 2WR87G5VKX | unknown | node (a node has the same name as the row) | mathlib_undergrad Group Theory > Basic definitions > order of an element, Mathlib orderOf |
| order of an entire function | 87HCJ2JHW4 | definition | open | Wikidata Q126425069, MathWorld FunctionOrder, ProofWiki Definition:Order_of_Entire_Function |
| Order of approximation | R32VFCKBWR | definition | open | Wikipedia Order of approximation, Wikidata Q7100757 |
| Order of integration | 41HX3TRPDP | definition | open | Wikipedia Order of integration (calculus), Wikidata Q3825182 |
| Order of integration | 7MQAT3K014 | definition | open | Wikipedia Order of integration, Wikidata Q7100625 |
| Order of integration | QZ8NVQ83EG | definition | open | Wikipedia List of statistics articles#ZCYN |
| order of magnitude | KGXD26PT9Y | concept | open | Wikidata Q518730, MathWorld OrderofMagnitude, Wikipedia Order of magnitude |
| order of operations | GPQVT60YKZ | definition | open | Wikidata Q845118, MathWorld Precedence, Wikipedia Order of operations |
| order one is not order two | 32H7NED83D | 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 2610.20775#1WKM |
| Order parameter | 3YB6Y8PMW1 | unknown | open | Wikipedia Phase transition#T0K6 |
| Order parameters of near-optimal states | CHVGH08QNV | 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 2610.06490#F36C |
| Order polynomial | 4WNRA18C40 | definition | open | Wikipedia Order polynomial, Wikidata Q55627850 |
| Order polytope | M288J39NJ9 | definition | open | Wikipedia Order polytope, Wikidata Q85791185 |
| Order representation | 2J78T178AM | 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 2609.20514#YKUM |
| order statistic | HGJT429W6A | definition | open | Wikidata Q1767128, MathWorld OrderStatistic, Wikipedia Order statistic |
| Order statistic | V6XKK51THA | definition | open | Wikipedia List of statistics articles#M7UX, Wikipedia List of permutation topics#L72X |
| Order statistics | AJ0S255N2N | 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 1007.0842#D3GT |
| Order summable | HG24TE0CWX | definition | open | Wikipedia Order summable, Wikidata Q96397668 |
| order theory | 2RYCKSF2PE | topic | open | Wikidata Q24175351, nLab order theory, ProofWiki Definition:Order_Theory, Wikipedia Order theory |
| Order theory | ZHW6ZGA1J8 | definition | open | Wikipedia Glossary of areas of mathematics#KST1 |
| Order through chaos and the second law of thermodynamics | KM0B30TVZ5 | statement | open | Wikipedia Entropy (statistical thermodynamics)#FODH |
| Order topology | 4DS491P9BN | definition | open | Wikipedia Order topology (functional analysis), Wikidata Q96397670 |
| order topology | A15N1RAGAT | unknown | open | mathlib_overview Topology > Topological algebra > order topology, Mathlib OrderTopology |
| Order topology | QAMAVT4J17 | definition | open | Wikipedia List of topologies#BWO2, Wikipedia List of examples in general topology#E8LV |
| order topology | RXXDEPQ9C8 | definition | open | Wikidata Q1321469, MathWorld OrderTopology, nLab order topology, Wikipedia Order topology |
| Order topology | SN01ZRXRGC | definition | open | Wikipedia List of order theory topics#C4OU |
| order two is not the projective rank | B2MV96GMME | 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 2610.20775#L5WL |
| order type | 32KTXH8EM4 | definition | open | Wikidata Q620006, MathWorld OrderType, Wikipedia Order type |
| order type | 7KT2247BVG | definition | open | Wikipedia Glossary of set theory#VAH6 |
| Order unit | B99KBGVP5Z | definition | open | Wikipedia Order unit, Wikidata Q7100705 |
| order, linear | MXKNTZ12CE | concept | open | applied_combinatorics index/6.1/order-linear |
| order, linear | P9VPV8777V | concept | open | hott_book index/B.2.1/order-linear |
| order, non-strict | 71BQP4NV9V | concept | open | hott_book index/B.6/order-non-strict |
| order, non-strict | S7BRVR7V3T | concept | open | hott_book index/B.3.3/order-non-strict |
| order, non-strict | W0H8G6RDNC | concept | open | hott_book index/C.2/order-non-strict |
| order, partial | M07VTRM583 | concept | open | applied_combinatorics index/6.1/order-partial |
| order, partial | WQKQB6ZJBF | concept | open | applied_combinatorics index/B.10/order-partial |
| order, strict | 2RBMYWXHKE | concept | open | hott_book index/B.6/order-strict |
| order, strict | 34EMW5FT80 | concept | open | hott_book index/B.3.3/order-strict |
| order, strict | SDAEJ7SC1H | concept | open | hott_book index/B.2.1/order-strict |
| order, total | 92BFDN50VQ | concept | open | applied_combinatorics index/B.10/order-total |
| order, total | H2Z42GGEZP | concept | open | applied_combinatorics index/6.1/order-total |