| Sinus totus | CXDTQSG3FD | definition | open | Wikipedia Sinus totus, Wikidata Q116765400 |
| Sinusoid | SCX90THK61 | definition | open | Wikipedia List of curves#X1NM |
| Sinusoidal model | 6PDWE6GDKH | definition | open | Wikipedia Sinusoidal model, Wikidata Q17080974 |
| Sinusoidal model | 9DVKM4JG2H | definition | open | Wikipedia List of statistics articles#FN1M |
| Sinusoidal paths | 6CNYBYY2EG | 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 2610.10993#ZYDP |
| Sinusoidal plane-wave solutions of the electromagnetic wave equation | ATQ40S0B8B | definition | open | Wikipedia Sinusoidal plane-wave solutions of the electromagnetic wave equation, Wikidata Q7525226 |
| sinusoidal projection | 6XW6AE4R6A | unknown | open | Wikidata Q773174, MathWorld SinusoidalProjection |
| Sinusoidal spiral | 1259ZH2DAM | definition | open | Wikipedia List of mathematical shapes#Q0Y0, Wikipedia List of curves#91IZ |
| sinusoidal spiral | FNMERK4F7D | definition | open | Wikidata Q2064156, MathWorld SinusoidalSpiral, Wikipedia Sinusoidal spiral |
| Sinusoidal trees | SW2Y6EF05D | 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 2610.10993#N5ZZ |
| Siobhán Vernon | XHD7SWRPX2 | topic | open | Wikipedia Siobhán Vernon, Wikidata Q28935891 |
| Sion's minimax theorem | 27ZWWG6XDE | statement | open | Wikipedia List of theorems#CVH5 |
| Sion's minimax theorem | 62T9MQE9P2 | statement | open | Wikipedia Minimax theorem#WM3N |
| Sion's minimax theorem | CW88S7RVHB | statement | open | mathlib_1000 Q7525341, Wikidata Q7525341, thousand_plus Q7525341, Wikipedia Sion's minimax theorem |
| SipHash | 1X48ZT52DJ | definition | open | Wikipedia SipHash, Wikidata Q7525546 |
| Sipser–Lautemann theorem | JDRWNZXWV9 | statement | open | Wikipedia List of theorems#08UU |
| Sipser–Lautemann theorem | KMZ3BYXXJJ | statement | open | mathlib_1000 Q7525845, Wikidata Q7525845, thousand_plus Q7525845, Wikipedia Sipser–Lautemann theorem |
| Sir Charles Wheatstone | 5AC6CNTQHJ | unknown | open | Wikipedia List of cryptographers#KFVR |
| Sir Cumference | J8F029YC8F | definition | open | Wikipedia Sir Cumference, Wikidata Q7526371 |
| Sir Edmund Whittaker Memorial Prize | S73F32AKVB | definition | open | Wikipedia Sir Edmund Whittaker Memorial Prize, Wikidata Q1562007 |
| Sir George Biddell Airy | JES9TAEEWF | unknown | open | Wikipedia List of eponyms of special functions#5GG3 |
| Sir George Stokes, 1st Baronet | K82VAJAA54 | topic | out_of_scope (a person, not an item of mathematics) | Wikidata Q155907, ProofWiki Mathematician:George_Gabriel_Stokes, Wikipedia Sir George Stokes, 1st Baronet |
| Sir Horace Lamb Chair | EB6Y31PKRQ | unknown | open | Wikipedia Department of Mathematics, University of Manchester#HZ1V |
| Sir Michael Atiyah | 4ZD02S3C3A | topic | open | Wikipedia List of algebraic geometry topics#4G0Y |
| SIR model | BMWBGFB3QT | unknown | open | Wikidata Q2206263, MathWorld SIRModel |
| SIR model | XD1NMWHZA6 | unknown | open | Wikipedia Compartmental models (epidemiology)#X1TF |
| Sir William Hamilton, 9th Baronet | Z5NCTA085M | topic | open | Wikipedia Sir William Hamilton, 9th Baronet, Wikidata Q15474 |
| Sirkeci, Ibrahim | 9GBBEYJDSY | unknown | open | Wikipedia List of statisticians#YJLR |
| SIS | AC1Z01RQ3G | definition | open | Wikipedia Glossary of set theory#FU2T |
| SISD--NBQP correspondence | F7D2CCQPDW | 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 2610.06300#H64Z, arXiv 2610.06340#FD7X |
| Sistema de Información de la Población Objetivo | T3MZRXBRG3 | definition | open | Wikipedia Sistema de Información de la Población Objetivo, Wikidata Q7531047 |
| Sister Beiter conjecture | 4D88Z5F5QX | statement | open | Wikipedia Sister Beiter conjecture, Wikidata Q118875116 |
| Sister Beiter conjecture | TWC16Z5WE9 | statement | open | Wikipedia Cyclotomic polynomial#EDFL |
| Sister Beiter conjecture | XPJ5VVR7RA | statement | open | Wikipedia List of unsolved problems in mathematics#68A7 |
| site | G8RWM37K1V | definition | open | Wikipedia Glossary of category theory#DRPL |
| Site bounds | CCWNABWHZ6 | 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 2609.10840#XCTJ |
| site percolation | HTE556T3V3 | unknown | open | Wikidata Q121335525, MathWorld SitePercolation |
| siteswap | B4VMWQVJD8 | definition | open | Wikidata Q1389933, MathWorld Siteswap, Wikipedia Siteswap |
| Sitnikov problem | HQYJXHYPPB | problem | open | Wikipedia Sitnikov problem, Wikidata Q1697929 |
| Sitting | 437PM9PTYV | unknown | open | Wikipedia List of paradoxes#SZZP |
| situation | 4HCGQNEJK6 | definition | open | Wikipedia Glossary of logic#T9HM |
| Situation calculus | EP62PC5M9Q | definition | open | Wikipedia Situation calculus, Wikidata Q1559077 |
| situation semantics | 13YVTQ9BQB | definition | open | Wikipedia Glossary of logic#O69Q |
| Situation semantics | H10HSDEF00 | definition | open | Wikipedia Situation semantics, Wikidata Q7532164 |
| Situation theory | FJCYB62P6R | definition | open | Wikipedia Situation theory, Wikidata Q7532152 |
| Situational logic | HG9E0V0DJ0 | definition | open | Wikipedia Situational logic, Wikidata Q7532161 |
| Siu's semicontinuity theorem | H39ABN9XTF | statement | open | Wikipedia List of theorems#HAQC |
| Siu's semicontinuity theorem | KB09FM5CA9 | statement | open | mathlib_1000 Q7532192, Wikidata Q7532192, thousand_plus Q7532192, Wikipedia Siu's semicontinuity theorem |
| Siva Athreya | CPV56BFYCB | topic | open | Wikipedia List of mathematical probabilists#Q2Y9 |
| Siva Athreya | HV3C590ATY | topic | open | Wikipedia Siva Athreya, Wikidata Q16885710 |
| Sivaguru S. Sritharan | ZSDG3B9FPZ | topic | open | Wikipedia Sivaguru S. Sritharan, Wikidata Q97574695 |
| Six Bells | 4053H7ZZ3X | unknown | open | Wikipedia List of places with numeric names#26GJ |
| Six circles theorem | BKK1CSJBZF | statement | open | Wikipedia List of theorems#WCDR |
| Six circles theorem | DS5533WHVM | statement | open | Wikipedia Tangent circles#TMY9 |
| Six circles theorem | Q5DF9J6JTC | statement | open | mathlib_1000 Q3527247, Wikidata Q3527247, thousand_plus Q3527247, Wikipedia Six circles theorem, MathWorld SixCirclesTheorem |
| Six Cross Roads | 8AN5JN8531 | unknown | open | Wikipedia List of places with numeric names#5YUO |
| Six cross-ratios | A8FSDCH89A | unknown | open | Wikipedia Cross-ratio#2FXU |
| six exponentials theorem | 2B5NSSA2N5 | statement | open | arXiv 2610.10469#7V69, mathlib_1000 Q3527245, Wikidata Q3527245, thousand_plus Q3527245, Wikipedia Six exponentials theorem, MathWorld SixExponentialsTheorem |
| Six exponentials theorem | EW708J64J3 | statement | open | Wikipedia List of exponential topics#C0BK |
| Six exponentials theorem | JT1JRTJVPN | statement | open | Wikipedia List of theorems#U1RN |
| Six Hill, West Virginia | PAGEM7X6SP | unknown | open | Wikipedia List of places with numeric names#W0EL |
| Six Hills | PYPSCB5WEA | unknown | open | Wikipedia List of places with numeric names#3K10 |
| Six Mile Bottom | QDD1CC2C0N | unknown | open | Wikipedia List of places with numeric names#WL1K |
| Six Mile Creek | PJQB5CY1HG | unknown | open | Wikipedia List of places with numeric names#SUXZ |
| Six Mile Grove Township, Swift County, Minnesota | J1TW46KQFZ | unknown | open | Wikipedia List of places with numeric names#L4NI |
| Six Mile Run, New Jersey | JPCTCTDA3Q | unknown | open | Wikipedia List of places with numeric names#H313 |
| Six Mile Township, Franklin County, Illinois | 1MNPH8B99D | unknown | open | Wikipedia List of places with numeric names#EZTU |
| Six Mile, Alabama | KW8FC61VQM | unknown | open | Wikipedia List of places with numeric names#KZXA |
| Six Mile, Papua New Guinea | WFJRJGSG3X | unknown | open | Wikipedia List of places with numeric names#GNP3 |
| Six Mile, South Carolina | J1XYX82SW8 | unknown | open | Wikipedia List of places with numeric names#3NOT |
| Six Nations of the Grand River | 94EP2KWMA0 | unknown | open | Wikipedia List of places with numeric names#VUO0 |
| Six nines in pi | GY7HVR5MFQ | object | open | Wikipedia List of topics related to π#0608 |
| six operations | HXP9A54QHF | definition | open | Wikidata Q17103325, nLab six operations, Wikipedia Six operations |
| Six Points, Hendricks County, Indiana | JFFH9H3E06 | unknown | open | Wikipedia List of places with numeric names#4OEZ |
| Six principal separators | NT2NATCNJ2 | 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 2610.17677#ZFKG |
| Six Shooter Canyon, Arizona | A1ZMTYQ9AS | unknown | open | Wikipedia List of places with numeric names#B1FL |
| Six Sigma | YMR77TNSAQ | definition | open | Wikipedia Six Sigma, Wikidata Q236908 |
| Six Way, Alabama | W3G8WB8J69 | unknown | open | Wikipedia List of places with numeric names#DDQW |
| Six, West Virginia | W1ANVQVR00 | unknown | open | Wikipedia List of places with numeric names#DXTK |
| Six-Fours-les-Plages | BHEG9G4DET | unknown | open | Wikipedia List of places with numeric names#V8ME |
| Six-Milles, New Brunswick | 4JQQJZPG7H | unknown | open | Wikipedia List of places with numeric names#SG8Q |
| Six-periodic group and homology data | 3JDXB840ZC | 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 2609.29839#1WTE |
| six-region classification | XTHD6M3MHY | 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 2609.22667#AULC |
| Six-value recovery | 7D554TPVXH | 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 2609.25762#D69N |
| Six-vertex tree counterexample | 5MKDW3JWZJ | 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 2610.10993#8S9O |
| Sixes, Georgia | 9NQ62F7W6V | unknown | open | Wikipedia List of places with numeric names#S88L |
| Sixes, Oregon | K8A32Z3KPH | unknown | open | Wikipedia List of places with numeric names#AYD8 |
| Sixfold convexity and the high-mass profile | QNW8K7S7HG | 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 2609.38228#V57G |
| Sixia Chen | CEWQ8Y2B45 | unknown | open | Wikipedia List of fellows of the American Statistical Association#4LJY |
| Sixteen Mile Stand, Ohio | FC3QQ1J1RJ | unknown | open | Wikipedia List of places with numeric names#AET3 |
| Sixteen-factor certificate | KGTSJZ20R2 | 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 2610.10950#3M4U |
| Sixteen-witness lemma | 45MQ1FFEET | 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 2610.10950#530P |
| Sixth moment bound | VHKWERZKBS | 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 2610.01035#RMSR |
| sixth power | S1APS3CXXW | definition | open | Wikidata Q37947496, ProofWiki Definition:Sixth_Power, Wikipedia Sixth power |
| Sixth Term Examination Paper | B3GQRFZEQK | definition | open | Wikipedia Sixth Term Examination Paper, Wikidata Q7533188 |
| Sixth Vein, Kentucky | TE2W047ENJ | unknown | open | Wikipedia List of places with numeric names#TFAL |
| Sixth-order identity | AGZRASZCDK | 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 2609.34016#X08Z |
| Sixty Six, South Carolina | WRPB5NA7W4 | unknown | open | Wikipedia List of places with numeric names#WYKA |
| Sixtymile | AKR327B9T6 | unknown | open | Wikipedia List of places with numeric names#YDDN |
| size | 4FY1R5JP7C | definition | open | Wikipedia Glossary of graph theory#KK76 |