Allowed parents
            m:apply and 
               m:bind
               
            
            Allowed children
            This element must not contain text.
            
            This element may contain the following children: m:abs, 
               m:and, 
               m:apply, 
               m:approx, 
               m:arccos, 
               m:arccosh, 
               m:arccot, 
               m:arccoth, 
               m:arccsc, 
               m:arccsch, 
               m:arcsec, 
               m:arcsech, 
               m:arcsin, 
               m:arcsinh, 
               m:arctan, 
               m:arctanh, 
               m:arg, 
               m:bind, 
               m:card, 
               m:cartesianproduct, 
               m:cbytes, 
               m:ceiling, 
               m:cerror, 
               m:ci, 
               m:cn, 
               m:codomain, 
               m:complexes, 
               m:compose, 
               m:conjugate, 
               m:cos, 
               m:cosh, 
               m:cot, 
               m:coth, 
               m:cs, 
               m:csc, 
               m:csch, 
               m:csymbol, 
               m:curl, 
               m:determinant, 
               m:diff, 
               m:divergence, 
               m:divide, 
               m:domain, 
               m:emptyset, 
               m:eq, 
               m:equivalent, 
               m:eulergamma, 
               m:exists, 
               m:exp, 
               m:exponentiale, 
               m:factorial, 
               m:factorof, 
               m:false, 
               m:floor, 
               m:forall, 
               m:gcd, 
               m:geq, 
               m:grad, 
               m:gt, 
               m:ident, 
               m:image, 
               m:imaginary, 
               m:imaginaryi, 
               m:implies, 
               m:in, 
               m:infinity, 
               m:int, 
               m:integers, 
               m:intersect, 
               m:interval, 
               m:inverse, 
               m:lambda, 
               m:laplacian, 
               m:lcm, 
               m:leq, 
               m:limit, 
               m:list, 
               m:ln, 
               m:log, 
               m:lt, 
               m:matrix, 
               m:matrixrow, 
               m:max, 
               m:mean, 
               m:median, 
               m:min, 
               m:minus, 
               m:mode, 
               m:moment, 
               m:naturalnumbers, 
               m:neq, 
               m:not, 
               m:notanumber, 
               m:notin, 
               m:notprsubset, 
               m:notsubset, 
               m:or, 
               m:outerproduct, 
               m:partialdiff, 
               m:pi, 
               m:piecewise, 
               m:plus, 
               m:power, 
               m:primes, 
               m:product, 
               m:prsubset, 
               m:quotient, 
               m:rationals, 
               m:real, 
               m:reals, 
               m:rem, 
               m:root, 
               m:scalarproduct, 
               m:sdev, 
               m:sec, 
               m:sech, 
               m:selector, 
               m:semantics, 
               m:set, 
               m:setdiff, 
               m:share, 
               m:sin, 
               m:sinh, 
               m:subset, 
               m:sum, 
               m:tan, 
               m:tanh, 
               m:tendsto, 
               m:times, 
               m:transpose, 
               m:true, 
               m:union, 
               m:variance, 
               m:vector, 
               m:vectorproduct and 
               m:xor
               
            
            Content model
            
               a choice of either one of the 141 elements: 
m:abs, 
m:and, 
m:apply, 
m:approx, 
m:arccos, 
m:arccosh, 
m:arccot, 
m:arccoth, 
m:arccsc, 
m:arccsch, 
m:arcsec, 
m:arcsech, 
m:arcsin, 
m:arcsinh, 
m:arctan, 
m:arctanh, 
m:arg, 
m:bind, 
m:card, 
m:cartesianproduct, 
m:cbytes, 
m:cbytes, 
m:ceiling, 
m:cerror, 
m:cerror, 
m:ci, 
m:cn, 
m:codomain, 
m:complexes, 
m:compose, 
m:conjugate, 
m:cos, 
m:cosh, 
m:cot, 
m:coth, 
m:cs, 
m:csc, 
m:csch, 
m:csymbol, 
m:curl, 
m:determinant, 
m:diff, 
m:divergence, 
m:divide, 
m:domain, 
m:emptyset, 
m:eq, 
m:equivalent, 
m:eulergamma, 
m:exists, 
m:exp, 
m:exponentiale, 
m:factorial, 
m:factorof, 
m:false, 
m:floor, 
m:forall, 
m:gcd, 
m:geq, 
m:grad, 
m:gt, 
m:ident, 
m:image, 
m:imaginary, 
m:imaginaryi, 
m:implies, 
m:in, 
m:infinity, 
m:int, 
m:integers, 
m:intersect, 
m:interval, 
m:inverse, 
m:lambda, 
m:laplacian, 
m:lcm, 
m:leq, 
m:limit, 
m:list, 
m:ln, 
m:log, 
m:lt, 
m:matrix, 
m:matrixrow, 
m:max, 
m:mean, 
m:median, 
m:min, 
m:minus, 
m:minus, 
m:mode, 
m:moment, 
m:naturalnumbers, 
m:neq, 
m:not, 
m:notanumber, 
m:notin, 
m:notprsubset, 
m:notsubset, 
m:or, 
m:outerproduct, 
m:partialdiff, 
m:pi, 
m:piecewise, 
m:plus, 
m:power, 
m:primes, 
m:product, 
m:prsubset, 
m:quotient, 
m:rationals, 
m:real, 
m:reals, 
m:rem, 
m:root, 
m:root, 
m:scalarproduct, 
m:sdev, 
m:sec, 
m:sech, 
m:selector, 
m:semantics, 
m:set, 
m:setdiff, 
m:share, 
m:share, 
m:sin, 
m:sinh, 
m:subset, 
m:sum, 
m:tan, 
m:tanh, 
m:tendsto, 
m:times, 
m:transpose, 
m:true, 
m:union, 
m:variance, 
m:vector, 
m:vectorproduct or 
m:xor 
                  or no content
end of choice 
             
            Namespace
            http://www.w3.org/1998/Math/MathML