25th March 2004 
New articles added:
antitone
cover
downset
Hasse diagram
incomparable
orderinverting
principal downset
principal upset
residual
residuated
upset 
[Statistics: 1432 index entries, 222 subject categories, 1145 articles, 3971 crossreferences, 62 external pages linked] 
22nd March 2004 
General changes:
 Technical difficulties have meant no updates for almost two months. These have now been resolved.
 Modifications to style of display of larger articles.

New articles added:
balanced presentation
Banach–Tarski paradox
Banach–tarski theorem
chain rule for derivatives
contour
Contour Integration, Fundamental Theorem
disc of convergence
Fundamental Theorem of Contour Integration
inductively ordered set
inductive order
inductive ordering
initial function
Kurosh subgroup theorem
power series
primitive root
radius of convergence
Saint Ives puzzle
smooth path
St Ives puzzle
wellorder
wellordered set
wellordering
wellordering principle
wellordering theorem 
[Statistics: 1421 index entries, 222 subject categories, 1135 articles, 3934 crossreferences, 62 external pages linked] 
5th February 2004 
New articles added:
Burnside problem
chained arrow notation
fractal
Graham’s number
Higman–Neumann–Neumann extenion
HNN extension
horseshoe
Kaprekar number
Kasiski attack
Kasiski examination
onetime pad
Penrose impossible staircase
Saint Petersburg paradox
stable letter
St Petersburg paradox
Vernam cipher
weak Burnside problem 
[Statistics: 1397 index entries, 217 subject categories, 1117 articles, 3866 crossreferences, 62 external pages linked] 
14th December 2003 
New articles added:
affine transformation
cofactor
cofinite subset
connected
contractible
covering
cross product
discrete topology
dot product
echelon matrix
endomorphism
formal theory
Hall–Witt Identity
Halmos symbol
indiscrete topology
interior
interior point
locally
minor
minute
order topology
partitioned matrix
path
path connected
reduced echelon matrix
row equivalent
scalar product
second
signed minor
theorem
tombstone
underlying set
vector product 
[Statistics: 1379 index entries, 211 subject categories, 1103 articles, 3824 crossreferences, 61 external pages linked] 
26th October 2003 
New articles added:
affine combination
affine space
anticlockwise
cancellative congruence
Cantor’s paradox
central series
coherent
commutator subgroup
conic section
convex
convex combination
convex hull
counterclockwise
dihedral group
ellipse
equivalence
fellow traveller property
finitely related
formal power series
hopfian
hyperbola
hypercenter
hypercentre
lipschitz property
lower central series
parabola
Pauli spin matrices
power set
p.R.N.G.
semisimple
Subgroup series
upper central series
vanish
widdershins
withershins 
[Statistics: 1344 index entries, 207 subject categories, 1074 articles, 3626 crossreferences, 60 external pages linked] 
23rd September 2003 
New articles added:
abelian series
atlas
Borel subgroup
Caesar shift cipher
cancellative
cancellative presentation
Cauchy–Riemann equations
chart
complete residue system
coordinate chart
cyclotomic field
derived length
Dirichlet’s Theorem
extension of a group
field polynomial
finitary power semigroup
free abelian group
free action
generating function
group extension
homeomorphism
indexed grammar
isometry
lastinfirstout list
left cancellative
L.F.S.R.
L.I.F.O.
linear feedback shift register
locally finite
lower triangular matrix
manifold
meromorphic
ordered group
power semigroup
primitive element
pushdown store
quadratic field
reclusive prime
reduced residue system
retract
retraction
right cancellative
stack
standard Borel subgroup
Todd–Coxeter coset enumeration
upper triangular matrix
word problem 
[Statistics: 1306 index entries, 203 subject categories, 1044 articles, 3484 crossreferences, 58 external pages linked] 
23rd August 2003 
General changes:
 With this update, Mathenomicon.net now possesses one thousand articles.

New articles added:
algebraic integer
assumption
beta function
beta integral
C.F.G.
C.F.L.
chief factor
chief series
Closure properties of language families
complement of a subgroup
composition factor
contextsensitive language
C.S.G.
C.S.L.
derangement
detachment rule
empty word
Eulerian integral of the first kind
finitely presented
finite presentation
Fit
Fitting subgroup
Frat
Frattini argument
Gödel’s Completeness Theorem
greedy algorithm
metabelian
metalanguage
modus ponens
modus tollens
nongenerator
number field
premise
premiss
principal factor
principal series
rational integer
soluble group
solvable group
strongly automatic semigroup
tautology
uniformly continuous 
[Statistics: 1256 index entries, 200 subject categories, 1000 articles, 56 external pages linked] 