| Leimkuhler–Matthews method | Z71VVQH9BD | definition | open | Wikipedia Leimkuhler–Matthews method, Wikidata Q113511984 |
| Leinster group | B638PBR4SP | unknown | open | Wikipedia List of unsolved problems in mathematics#CIZD |
| Leisure City | CHCMD1B2GQ | unknown | open | Wikipedia List of U.S. communities with Hispanic-majority populations in the 2000 census#3GK0 |
| Lek-Heng Lim | 1GFX6ZMY2X | topic | open | Wikipedia Lek-Heng Lim, Wikidata Q46993003 |
| Leland Wilkinson | DCFPA69ZT6 | unknown | open | Wikipedia List of fellows of the American Statistical Association#4FY0 |
| Lelong | HTY1ATCSZ7 | definition | open | Wikipedia Glossary of real and complex analysis#HFDL |
| Lelong number | 4ZWEHC7W6D | definition | open | Wikipedia Lelong number, Wikidata Q6520938 |
| Lelong number | GMHV3WR00T | definition | open | Wikipedia Glossary of algebraic geometry#ME29 |
| LEM | 7Z30TRVT0F | definition | open | Wikipedia Glossary of set theory#WS3G |
| Lem.\,5.4 | 3NPV7YCPWA | 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 2610.07855#2TU2 |
| Lemaître–Tolman metric | 26JAAY07DM | definition | open | Wikipedia Lemaître–Tolman metric, Wikidata Q6521045 |
| Lemke's algorithm | CC52FF88K4 | definition | open | Wikipedia Lemke's algorithm, Wikidata Q6521168 |
| Lemke–Howson algorithm | C2VPXJF7RP | definition | open | Wikipedia Lemke–Howson algorithm, Wikidata Q6521170 |
| Lemma | 1252W6MANK | statement | open | Wikipedia Levi-Civita connection#T4AZ |
| Lemma | 15YG8RNYT6 | statement | open | Wikipedia Elementary symmetric polynomial#XAV1 |
| Lemma | 17PRETVS44 | statement | open | Wikipedia Minkowski plane#GA3N |
| Lemma | 23KWEDAXYZ | statement | open | Wikipedia Zorn's lemma#HQWT |
| Lemma | 26NT2BG6S8 | statement | open | Wikipedia Lévy's constant#98V2 |
| Lemma | 304HP5F552 | statement | open | Wikipedia XTR#74DZ |
| Lemma | 3X2325ZDD7 | statement | open | Wikipedia Squeeze mapping#Z715 |
| Lemma | 3X6R2A4BB2 | statement | open | Wikipedia Permutation polynomial#FRT2 |
| Lemma | 3Z21BWPE09 | statement | open | Wikipedia Maximum theorem#DV98 |
| Lemma | 4C9SM28K67 | statement | open | Wikipedia Approximately finite-dimensional C*-algebra#WHRD |
| Lemma | 4JRZ5DZNK4 | statement | open | Wikipedia Dolbeault cohomology#UH88 |
| Lemma | 4JYJP0TKCA | statement | open | Wikipedia Polar decomposition#J0D7 |
| Lemma | 4WZS33WPVN | statement | open | Wikipedia Minkowski plane#HQPM |
| Lemma | 53R9C8WMEG | statement | deferred (the item has no name of its own, and the write role names it) | Wikipedia Sylow theorems#M8PX |
| Lemma | 55CBZNHARW | statement | open | Wikipedia Dimension theory (algebra)#6NS6 |
| Lemma | 586JGQZWHT | statement | open | Wikipedia Dimension theory (algebra)#7Y7N |
| Lemma | 5AVV4FTXVT | statement | open | Wikipedia Bellman–Ford algorithm#JY5P |
| Lemma | 5C8CB85Y24 | statement | open | Wikipedia BPP (complexity)#IIP0 |
| Lemma | 5CQDGA8ZKD | statement | open | Wikipedia Frobenius determinant theorem#E5T1 |
| Lemma | 5NQRN0BT3S | statement | open | Wikipedia Borel measure#Q8PU |
| Lemma | 5T990AZAZF | statement | open | Wikipedia Riesz–Thorin theorem#PYWJ |
| lemma | 68CR4ED218 | concept | open | Wikidata Q207505, MathWorld Lemma, ProofWiki Definition:Lemma, Wikipedia Lemma (mathematics) |
| Lemma | 6H47VTF9V5 | statement | open | Wikipedia Randomness extractor#BBSW |
| Lemma | 6T64WGAZGD | statement | open | Wikipedia Original proof of Gödel's completeness theorem#S2OW |
| Lemma | 7R1Y0D7K7Y | statement | open | Wikipedia Exponential mechanism#THGZ |
| Lemma | 83M2R7M49B | statement | open | Wikipedia Dolbeault cohomology#WFLA |
| Lemma | 8FKSE2QX4F | statement | open | Wikipedia DFA minimization#1W4U |
| Lemma | 8MRSHSFB8X | statement | open | Wikipedia Omega-regular language#I5K6 |
| Lemma | 8W8CDCKQFP | statement | open | Wikipedia Frostman lemma#ZZNP |
| Lemma | 9GX38BP8GF | statement | open | Wikipedia Closed-subgroup theorem#FSYI |
| Lemma | 9JX7XB8NZG | statement | open | Wikipedia Newton–Gauss line#EGQV |
| Lemma | A5W34M1N88 | statement | open | Wikipedia Goldstine theorem#DYEH |
| Lemma | A7QV4JWYBM | statement | open | Wikipedia Proofs of Fermat's little theorem#9TK8 |
| Lemma | AE3WH5NAD5 | statement | open | Wikipedia Inverse function theorem#79U9 |
| Lemma | AK0PMHBVZS | statement | open | Wikipedia Multiplier algebra#3USS |
| Lemma | AKFTXE07XP | statement | open | Wikipedia Bloch's theorem#FQHL |
| Lemma | APGV91S8PZ | statement | open | Wikipedia Vertex separator#JPSL |
| Lemma | AWFNTHTSXE | statement | open | Wikipedia Chow variety#IQC2 |
| Lemma | AXD3PGQXBK | statement | open | Wikipedia Christoffel–Darboux formula#C2O3 |
| Lemma | B70ZJQ54EY | statement | open | Wikipedia Prime omega function#EYJA |
| Lemma | B9Z45M95QT | statement | open | Wikipedia Zorn's lemma#BT4Y |
| Lemma | BCPEYKPXQT | statement | open | Wikipedia Minkowski plane#KF59 |
| Lemma | BEXYX4QBFC | statement | open | Wikipedia Artin transfer (group theory)#WL8C |
| Lemma | BPKVMDANR2 | statement | open | Wikipedia Grothendieck spectral sequence#4QML |
| Lemma | BRR3QCZQJ8 | statement | open | Wikipedia Uniform convergence in probability#XCXW |
| Lemma | BT01C6ENMQ | statement | open | Wikipedia Bayesian information criterion#K5W9 |
| Lemma | C3F0QKNE1A | statement | open | Wikipedia Congruence lattice problem#0AYF |
| Lemma | C3VNZG7F37 | statement | open | Wikipedia Approximately finite-dimensional C*-algebra#DED0 |
| Lemma | CYHPKV2GV4 | statement | open | Wikipedia Dual of BCH is an independent source#VKYN |
| Lemma | DDVR79D04H | statement | open | Wikipedia Bramble–Hilbert lemma#YEYH |
| Lemma | DGR3YEFQNQ | statement | open | Wikipedia Perron's irreducibility criterion#BSCT |
| Lemma | DM1TG4QSYC | statement | open | Wikipedia Lochs's theorem#5UYX |
| Lemma | E17K2RA9AN | statement | open | Wikipedia Exact couple#ZIQ9 |
| Lemma | E3JKG30WXE | statement | open | Wikipedia Laguerre plane#WYX0 |
| Lemma | EGHB9WNDTB | statement | open | Wikipedia Prékopa–Leindler inequality#TV1O |
| Lemma | EQVM31VF85 | statement | open | Wikipedia Permutation polynomial#9SO4 |
| Lemma | ERZ2E8FQWS | statement | open | Wikipedia Liouville number#HG3Q |
| Lemma | F7KGFJ86HV | statement | open | Wikipedia Original proof of Gödel's completeness theorem#0S97 |
| Lemma | FBY2WBD3GP | statement | open | Wikipedia Picard–Lindelöf theorem#K3J4 |
| Lemma | FBYFN0TA9F | statement | open | Wikipedia Hardy–Littlewood maximal function#AKF7 |
| Lemma | FJWEWRMDKV | statement | open | Wikipedia Hadamard factorization theorem#J2PM |
| Lemma | FYX0TNNESK | statement | open | Wikipedia Artin transfer (group theory)#A9FB |
| Lemma | G2KF3NPXX7 | statement | open | Wikipedia Descartes's rule of signs#93ZA |
| Lemma | G71VF93B2Z | statement | open | Wikipedia Parikh's theorem#AKGQ |
| Lemma | GFQJXQ4YV0 | statement | open | Wikipedia Carathéodory's theorem (convex hull)#F2YM |
| Lemma | GSCG9J35CQ | statement | open | Wikipedia Simplicial approximation theorem#0DKT |
| Lemma | HCX8RKQFCM | statement | open | Wikipedia Hausdorff maximal principle#W7P9 |
| Lemma | HNZVHEM456 | statement | open | Wikipedia Chebyshev's inequality#MZMM |
| Lemma | HYZ9GBXJGX | statement | open | Wikipedia XTR#MIFZ |
| Lemma | JN0NPXMMK3 | statement | open | Wikipedia Landau kernel#6JP8 |
| Lemma | JN8R215ZSX | statement | open | Wikipedia Identity theorem#3R5U |
| Lemma | JNDJ8DA7RH | statement | open | Wikipedia Mixing (mathematics)#6ALA |
| Lemma | JXWDYNQK04 | statement | open | Wikipedia Uniform convergence in probability#J5YX |
| Lemma | K7Y16K4GGW | statement | open | Wikipedia Schur–Horn theorem#U7GL |
| Lemma | K8XXRE3E8P | statement | open | Wikipedia Laguerre plane#YQ7Y |
| Lemma | KB5TMEDJK0 | statement | open | Wikipedia Proofs of convergence of random variables#70GT |
| Lemma | KC5H44QZMF | statement | open | Wikipedia Universal Taylor series#9N77 |
| Lemma | KD45G7G4DR | statement | open | Wikipedia Hahn–Banach theorem#00ZN |
| Lemma | KK6K452AM3 | statement | open | Wikipedia Ruzsa triangle inequality#Q3AQ |
| Lemma | KKKHFM9P0M | statement | open | Wikipedia Logarithmic Sobolev inequalities#2ZD8 |
| Lemma | KTW3197F3N | statement | open | Wikipedia Tychonoff's theorem#G4BL |
| Lemma | M5KRCCNP62 | statement | open | Wikipedia Leibniz integral rule#X4CT |
| Lemma | MGD7B7EQQ7 | statement | open | Wikipedia Q-construction#83CR |
| Lemma | MWE5PWMS8Z | statement | open | Wikipedia Convex cap#N2HG |
| Lemma | MYKBGV4X22 | statement | open | Wikipedia Bramble–Hilbert lemma#3LAX |
| Lemma | NDJVQW7RME | statement | open | Wikipedia Gordan's lemma#S0S3 |
| Lemma | NE0QWGCNZV | statement | open | Wikipedia Bolzano–Weierstrass theorem#XRCH |