| Solved game | SR0WFGGH2N | definition | open | Wikipedia Glossary of game theory#VVRN |
| solved problem | FFM3QXH5XR | unknown | open | Wikidata Q121357002, MathWorld SolvedProblems |
| Solvers for propositional logic formulas | RB0VXBA3M3 | unknown | open | Wikipedia Propositional logic#UQ0W |
| Solving chess | T9MTNMQBEA | conjecture | open | Wikipedia Solving chess, Wikidata Q7559040 |
| Solving CLP: the Erosion Lemma | 26F8QDXEQW | statement | open | Wikipedia Congruence lattice problem#R2WM |
| Solving for $g_{(2,1),(2,1)}^{(3,2,1)}$ | BHW0F086ZD | example | 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 2610.12326#AAMS |
| Solving functional equations | BYAWESNE62 | unknown | open | Wikipedia Functional equation#XAVV |
| Solving non-trigonometric equations using trigonometry | BNV8JJRMD0 | unknown | open | Wikipedia Uses of trigonometry#EA03 |
| Solving quadratic equations with continued fractions | TJGXTG5ZRW | definition | open | Wikipedia Solving quadratic equations with continued fractions, Wikidata Q1212495 |
| solving systems of differential equations of order $> 1$ | YD84832DSB | unknown | open | mathlib_undergrad Multivariable calculus > Differential equations > solving systems of differential equations of order $> 1$ |
| Solving systems of polynomial equations | EJMD09D972 | unknown | open | Wikipedia System of polynomial equations#U9E7 |
| solving the Laplace equations | BATKV3NWNC | unknown | open | mathlib_undergrad Distribution calculus > Applications > solving the Laplace equations |
| Solving the Riddle of Phyllotaxis | DGQ48FEER9 | definition | open | Wikipedia Solving the Riddle of Phyllotaxis, Wikidata Q97355771 |
| Solving the Symmetric Lyapunov Equation | QYJEZD1CH3 | 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 2609.32505#FF68 |
| solvmanifold | 3XQ7AG1MK6 | definition | open | Wikidata Q7559043, EoM Solv_manifold, Wikipedia Solvmanifold |
| Solèr's theorem | 4926E0YK3K | statement | open | mathlib_1000 Q48996535, Wikidata Q48996535, thousand_plus Q48996535, Wikipedia Solèr's theorem |
| Solèr's theorem | 9YEJB6JDGK | statement | open | Wikipedia List of theorems#OXW2 |
| Soma cube | 68F6FENDTF | unknown | open | Wikidata Q138865, MathWorld SomaCube |
| Some additional laws for complements | W6GQ64ZC8Y | statement | open | Wikipedia Algebra of sets#VB4J |
| Some additional laws for unions and intersections | SD5D6W9VWV | statement | open | Wikipedia Algebra of sets#9W1Q |
| Some basic observations about pivots | Z8W27WR7S9 | exercise | open | austin_ula src/section1-4.xml#ula-preview-1-4 |
| Some basic theorems | C2B0C1CNVK | statement | open | Wikipedia Universal algebra#13VL |
| Some formulas for fractional iteration | 4BFJHWZBDT | statement | open | Wikipedia Iterated function#S6CX |
| Some major theorems and observations | QKBWYNTXRQ | statement | open | Wikipedia Handle decomposition#WBGR |
| Some properties on $\dim_H$ | EW3AT9RT63 | 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 2505.10801#GY31 |
| Some PST theorems | 1T5H2GPM3E | statement | open | Wikipedia Pocket set theory#XDW6 |
| Some relevant theorems | C07C6KQW3Y | statement | open | Wikipedia Ring theory#ZR3F |
| Some Remarks on Logical Form | NMA1EKSERB | topic | open | Wikipedia Some Remarks on Logical Form, Wikidata Q7559482 |
| Some theorems | HPPV1T4T3V | statement | open | Wikipedia Presentation of a group#UPZ9 |
| Some theorems | R3SD5TJM55 | statement | open | Wikipedia Complete metric space#LWII |
| Some transforms of this law | FCQBK9DCZ7 | statement | open | Wikipedia Poisson distribution#W43Z |
| Some transforms of this law | G00D3X6A3K | statement | open | Wikipedia Marchenko–Pastur distribution#EKFT |
| Some type $(1, 0)$ $1$-forms | MNWH3453HY | example | open | napkin tex/riemann-surface/forms.tex#example-5 |
| Some useful theorems | M9WA1QV6VY | statement | open | Wikipedia Simple continued fraction#TFEY |
| Somers' D | QBPH7ZD3X3 | definition | open | Wikipedia List of statistics articles#T4BF |
| Somers' D | ZVERWSVAHW | definition | open | Wikipedia Somers' D, Wikidata Q25304485 |
| Somerton | JWYKH18ZFY | unknown | open | Wikipedia List of U.S. communities with Hispanic-majority populations in the 2000 census#DSNN |
| Somer–Lucas pseudoprime | 5FKT936B98 | concept | open | Wikidata Q7559991, MathWorld Somer-LucasPseudoprime, Wikipedia Somer–Lucas pseudoprime |
| Someshvara III | 5Y31ZHQA7T | unknown | open | Wikipedia List of Indian mathematicians#H1AS |
| Something | ZQTB5RH5NN | definition | open | Wikipedia Something (concept), Wikidata Q140673965 |
| Somigliana equation | RWBARHF265 | unknown | open | Wikipedia Theoretical gravity#II78 |
| Sommer Gentry | M6VWE979TD | topic | open | Wikipedia Sommer Gentry, Wikidata Q37841444 |
| Sommerfeld constant | 744WN8H6N3 | unknown | open | Wikipedia List of scientific constants named after people#9BNT |
| Sommerfeld effect | 9BRKG46T3E | definition | open | Wikipedia Sommerfeld effect, Wikidata Q85802041 |
| Sommerfeld expansion | 2NMJ03Y2K3 | definition | open | Wikipedia Sommerfeld expansion, Wikidata Q7560453 |
| Sommerfeld identity | SWP1M01M6R | statement | open | Wikipedia Sommerfeld identity, Wikidata Q784909 |
| Sommerfeld radiation condition | G8RZWZZ6PX | definition | open | Wikipedia Sommerfeld radiation condition, Wikidata Q902719 |
| Sommerfeld-Runge method | PG9M8CBSZK | unknown | open | Wikipedia Geometrical optics#TBXG |
| Somos sequence | T2EDTFCQ61 | definition | open | Wikidata Q7560513, MathWorld SomosSequence, Wikipedia Somos sequence |
| Somos' quadratic recurrence constant | S4X5F82FVS | object | open | Wikidata Q7560506, OEIS A112302, Wikipedia Somos' quadratic recurrence constant |
| Song | R2TBWEA7J6 | problem | 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 2610.12238#N2IO |
| Song District | JWY7NRGM03 | unknown | open | Wikipedia List of places with numeric names#KZGR |
| Song Khwae District | PXPPJ0T64B | unknown | open | Wikipedia List of places with numeric names#A39L |
| Song Phi Nong District | BDRTC5A30Y | unknown | open | Wikipedia List of places with numeric names#3YLY |
| Song Sun | KRBEQZ3DC4 | topic | open | Wikipedia Song Sun, Wikidata Q62716444 |
| Song Sun | M2G6RAEC6Z | topic | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#HROA |
| Song--Tucker | CP9Z8A4STH | 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 2610.08753#3PK4 |
| Sonia Delaunay | BTJH24BWGZ | unknown | open | Wikipedia List of Ukrainian Jews#JVOP |
| Sonia Delaunay | RHQKFQGTBP | unknown | open | Wikipedia List of Ukrainian Jews#Q886 |
| Sonia Natale | S96CCMPRFX | unknown | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#SGLB |
| Sonia Petrone | 947GVH1BHM | topic | open | Wikipedia Sonia Petrone, Wikidata Q50199209 |
| Sonja Brentjes | 9RX044X951 | topic | open | Wikipedia Sonja Brentjes, Wikidata Q14525458 |
| Sonja Lyttkens | 22NS6G7804 | topic | open | Wikipedia Sonja Lyttkens, Wikidata Q19844789 |
| Sonja Petrović | AV97G6K3WE | topic | open | Wikipedia Sonja Petrović (statistician), Wikidata Q102340857 |
| Sonja Smets | Y9TQ3PFG04 | unknown | open | Wikipedia List of women logicians#VJBP |
| Sonnenschein–Mantel–Debreu theorem | 3787W47P1S | statement | open | mathlib_1000 Q925224, Wikidata Q925224, thousand_plus Q925224, Wikipedia Sonnenschein–Mantel–Debreu Theorem, Wikipedia Sonnenschein–Mantel–Debreu theorem |
| Sonnenschein–Mantel–Debreu Theorem | MM7BXBK3R9 | statement | open | Wikipedia List of theorems#Z974 |
| Sono's positivity criterion | 3VGN1RDB7W | 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 2609.35548#UV7U |
| Sonya Christian | 6S9S2EEN8X | topic | open | Wikipedia Sonya Christian, Wikidata Q118358869 |
| Sophia Agranovich | WPQW5WYSEE | unknown | open | Wikipedia List of Ukrainian Jews#M4KE |
| Sophia Foster Richardson | 932KXA9VVB | topic | open | Wikipedia Sophia Foster Richardson, Wikidata Q18912086 |
| Sophia Levy | BWWE842KV5 | topic | open | Wikipedia Sophia Levy, Wikidata Q110969269 |
| Sophia Rabe-Hesketh | 3HE24MV476 | topic | open | Wikipedia List of fellows of the American Statistical Association#HXS7 |
| Sophia Rabe-Hesketh | GY9AWS00BX | topic | open | Wikipedia Sophia Rabe-Hesketh, Wikidata Q26702615 |
| Sophie Achard | ZGFJCQKGB5 | topic | open | Wikipedia Sophie Achard, Wikidata Q96680416 |
| Sophie Bryant | XWR2Z9DGKX | topic | open | Wikipedia Sophie Bryant, Wikidata Q7562969 |
| Sophie Dabo-Niang | M42P37BEVH | topic | open | Wikipedia Sophie Dabo-Niang, Wikidata Q23704524 |
| Sophie Germain | 1CM7ZNC8WN | topic | open | Wikipedia Sophie Germain, Wikidata Q7103 |
| Sophie Germain Counter Mode | 6B6Y01JXZX | definition | open | Wikipedia Sophie Germain Counter Mode, Wikidata Q7562999 |
| Sophie Germain identity | P31A4EW3VV | statement | open | Wikipedia List of mathematical identities#K9S0 |
| Sophie Germain prime | JMS5SW5E08 | conjecture | open | Wikipedia List of number theory topics#ZTZX |
| Sophie Germain prime | PNQBCZXDXA | conjecture | open | Wikipedia List of number theory topics#K0HM |
| Sophie Germain prime | VX23PC9T7J | object | open | Wikidata Q624025, MathWorld SophieGermainPrime, OEIS A005384 |
| Sophie Germain Prize | R0E85CX5Q6 | definition | open | Wikipedia Sophie Germain Prize, Wikidata Q1238959 |
| Sophie Germain's identity | D6Y0WC8XBV | statement | open | Wikipedia Sophie Germain's identity, Wikidata Q3791817 |
| Sophie Germain's theorem | G5VYK159EE | statement | open | Wikipedia List of theorems#10DL |
| Sophie Germain's theorem | QRS16AV5S0 | statement | open | mathlib_1000 Q3527162, Wikidata Q3527162, thousand_plus Q3527162, Wikipedia Sophie Germain's theorem |
| Sophie Morel | 1XSNKW0XR8 | topic | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#SHOU |
| Sophie Morel | BBARTWFC88 | topic | out_of_scope (a person, not an item of mathematics) | Wikidata Q1391052, nLab Sophie Morel, Wikipedia Sophie Morel |
| Sophie Piccard | B27HWCA49T | topic | open | Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#2891, Wikipedia List of International Congresses of Mathematicians Plenary and Invited Speakers#6RUS |
| Sophie Piccard | DSCNBYJ9RD | topic | open | Wikipedia Sophie Piccard, Wikidata Q21055959 |
| Sophien | 8RWPV16SK5 | unknown | open | Wikipedia Sophie Germain#35FU |
| sophism | XNPT8NWNHK | definition | open | Wikipedia Glossary of logic#PRH9 |
| sophisma | XN24X7ES49 | definition | open | Wikipedia Glossary of logic#1MIN |
| Sophistical Refutations | GSMVZPXW3G | definition | open | Wikipedia List of works by Averroes#5BQF |
| Sophistical Refutations | MXWSXMVW14 | definition | open | Wikipedia Sophistical Refutations, Wikidata Q766539 |
| sophomore's dream | NZ3EAA5DYG | definition | open | Wikidata Q4115573, MathWorld SophomoresDream, Wikipedia Sophomore's dream |
| Sophus Lie | 17H0ZBFHT6 | topic | open | Wikipedia List of Lie groups topics#W6LH |
| Sophus Lie | 1J8ZMXHS2Q | topic | open | Wikipedia List of group theory topics#EDYP |
| Sophus Lie | 3CTJV5FKXZ | topic | open | Wikipedia List of mathematicians born in the 19th century#ORR6 |