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+%D \module
+%D [ file=math-lbr,
+%D version=2001.04.12,
+%D title=\CONTEXT\ Math Macros,
+%D subtitle=Lucida Specials,
+%D author={Hans Hagen \& Taco Hoekwater},
+%D date=\currentdate,
+%D copyright=\PRAGMA]
+%C
+%C This module is part of the \CONTEXT\ macro||package and is
+%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
+%C details.
+
+\unprotect
+
+\definefamilysynonym [lbr] [calligrapahy] [sy]
+\definefamilysynonym [lbr] [oldstyle] [mi]
+
+\definefamilysynonym [lbr] [blackboard] [ma]
+\definefamilysynonym [lbr] [ucgreek] [mb]
+\definefamilysynonym [lbr] [vargreek] [mi]
+
+\startmathcollection[lbr]
+
+\definemathsymbol [boxdot] [bin] [sy] ["ED]
+\definemathsymbol [boxplus] [bin] [sy] ["EA]
+\definemathsymbol [boxtimes] [bin] [sy] ["EC]
+\definemathsymbol [square] [ord] [ma] ["02]
+\definemathsymbol [Box] [ord] [ma] ["02] % square
+\definemathsymbol [blacksquare] [ord] [ma] ["03]
+\definemathsymbol [centerdot] [bin] [ma] ["E1] % [sy] ["01]
+\definemathsymbol [Diamond] [ord] [sy] ["05]
+\definemathsymbol [lozenge] [ord] [sy] ["05] % Diamond
+\definemathsymbol [blacklozenge] [ord] [ma] ["09]
+\definemathsymbol [circlearrowright] [rel] [ma] ["8C]
+\definemathsymbol [circlearrowleft] [rel] [ma] ["8B]
+\definemathsymbol [rightleftharpoons] [rel] [sy] ["8E]
+\definemathsymbol [leftrightharpoons] [rel] [sy] ["8D]
+\definemathsymbol [boxminus] [bin] [sy] ["EB]
+\definemathsymbol [Vdash] [rel] [sy] ["F0]
+\definemathsymbol [Vvdash] [rel] [mb] ["D3]
+\definemathsymbol [vDash] [rel] [mb] ["D6]
+\definemathsymbol [twoheadrightarrow] [rel] [ma] ["25]
+\definemathsymbol [twoheadleftarrow] [rel] [ma] ["23]
+\definemathsymbol [leftleftarrows] [rel] [ma] ["71]
+\definemathsymbol [rightrightarrows] [rel] [ma] ["73]
+\definemathsymbol [upuparrows] [rel] [ma] ["72]
+\definemathsymbol [downdownarrows] [rel] [ma] ["74]
+\definemathsymbol [upharpoonright] [rel] [ma] ["75]
+\definemathsymbol [restriction] [rel] [ma] ["77]
+\definemathsymbol [downharpoonright] [rel] [ma] ["77]
+\definemathsymbol [upharpoonleft] [rel] [ma] ["76]
+\definemathsymbol [downharpoonleft] [rel] [ma] ["78]
+\definemathsymbol [rightarrowtail] [rel] [ma] ["29]
+\definemathsymbol [leftarrowtail] [rel] [ma] ["28]
+\definemathsymbol [leftrightarrows] [rel] [ma] ["6E]
+\definemathsymbol [rightleftarrows] [rel] [ma] ["6D]
+\definemathsymbol [Lsh] [rel] [ma] ["7B]
+\definemathsymbol [Rsh] [rel] [ma] ["7D]
+\definemathsymbol [rightsquigarrow] [rel] [ma] ["8E]
+\definemathsymbol [leadsto] [rel] [ma] ["8E] % rightsquigarrow
+\definemathsymbol [leftrightsquigarrow] [rel] [ma] ["91]
+\definemathsymbol [looparrowleft] [rel] [ma] ["3F]
+\definemathsymbol [looparrowright] [rel] [ma] ["40]
+\definemathsymbol [circeq] [rel] [sy] ["D0]
+\definemathsymbol [succsim] [rel] [sy] ["E1]
+\definemathsymbol [gtrsim] [rel] [sy] ["DD]
+\definemathsymbol [gtrapprox] [rel] [mb] ["DB]
+\definemathsymbol [multimap] [rel] [mb] ["C7]
+\definemathsymbol [therefore] [rel] [sy] ["90]
+\definemathsymbol [because] [rel] [sy] ["91]
+\definemathsymbol [doteqdot] [rel] [sy] ["CA]
+\definemathsymbol [Doteq] [rel] [sy] ["CA] % doteqdot
+\definemathsymbol [triangleq] [rel] [sy] ["D5]
+\definemathsymbol [precsim] [rel] [sy] ["E0]
+\definemathsymbol [lesssim] [rel] [sy] ["DC]
+\definemathsymbol [lessapprox] [rel] [mb] ["DA]
+\definemathsymbol [eqslantless] [rel] [mb] ["E2]
+\definemathsymbol [eqslantgtr] [rel] [mb] ["E3]
+\definemathsymbol [curlyeqprec] [rel] [mb] ["E6]
+\definemathsymbol [curlyeqsucc] [rel] [mb] ["E7]
+\definemathsymbol [preccurlyeq] [rel] [mb] ["E4]
+\definemathsymbol [leqq] [rel] [sy] ["DA]
+\definemathsymbol [leqslant] [rel] [mb] ["E0]
+\definemathsymbol [lessgtr] [rel] [sy] ["DE]
+\definemathsymbol [backprime] [ord] [mb] ["C8]
+\definemathsymbol [dabar@] [ord] [ma] ["03] % !! @
+\definemathsymbol [risingdotseq] [rel] [sy] ["CC]
+\definemathsymbol [fallingdotseq] [rel] [sy] ["CB]
+\definemathsymbol [succcurlyeq] [rel] [mb] ["E5]
+\definemathsymbol [geqq] [rel] [sy] ["DB]
+\definemathsymbol [geqslant] [rel] [mb] ["E1]
+\definemathsymbol [gtrless] [rel] [sy] ["DF]
+\definemathsymbol [sqsubset] [rel] [sy] ["E4]
+\definemathsymbol [sqsupset] [rel] [sy] ["E5]
+\definemathsymbol [vartriangleright] [rel] [mb] ["2E]
+\definemathsymbol [rhd] [bin] [mb] ["2E]
+\definemathsymbol [lhd] [bin] [mb] ["2F]
+\definemathsymbol [vartriangleleft] [rel] [mb] ["2F]
+\definemathsymbol [trianglerighteq] [rel] [sy] ["F5]
+\definemathsymbol [unrhd] [bin] [sy] ["F5] % trianglerighteq
+\definemathsymbol [trianglelefteq] [rel] [sy] ["F4]
+\definemathsymbol [unlhd] [bin] [sy] ["F4] % trianglelefteq
+\definemathsymbol [bigstar] [ord] [ma] ["AB]
+\definemathsymbol [between] [rel] [mb] ["F2]
+\definemathsymbol [blacktriangledown] [ord] [ma] ["07]
+\definemathsymbol [blacktriangleright] [rel] [mb] ["F1]
+\definemathsymbol [blacktriangleleft] [rel] [mb] ["F0]
+\definemathsymbol [vartriangle] [rel] [ma] ["04]
+\definemathsymbol [triangleup] [ord] [ma] ["04] % vartriangle
+\definemathsymbol [blacktriangle] [ord] [ma] ["05]
+\definemathsymbol [triangledown] [ord] [ma] ["06]
+\definemathsymbol [eqcirc] [rel] [sy] ["CF]
+\definemathsymbol [lesseqgtr] [rel] [mb] ["E8]
+\definemathsymbol [gtreqless] [rel] [mb] ["E9]
+\definemathsymbol [lesseqqgtr] [rel] [mb] ["EA]
+\definemathsymbol [gtreqqless] [rel] [mb] ["EB]
+\definemathsymbol [Rrightarrow] [rel] [ma] ["6C]
+\definemathsymbol [Lleftarrow] [rel] [ma] ["6A]
+\definemathsymbol [veebar] [bin] [mb] ["D2]
+\definemathsymbol [barwedge] [bin] [sy] ["F6]
+\definemathsymbol [doublebarwedge] [bin] [sy] ["D4]
+\definemathsymbol [angle] [ord] [sy] ["8B]
+\definemathsymbol [measuredangle] [ord] [sy] ["8C]
+\definemathsymbol [sphericalangle] [ord] [sy] ["8D]
+\definemathsymbol [varpropto] [rel] [sy] ["2F]
+\definemathsymbol [smallsmile] [rel] [mb] ["5E]
+\definemathsymbol [smallfrown] [rel] [mb] ["5F]
+\definemathsymbol [Subset] [rel] [sy] ["F8]
+\definemathsymbol [Supset] [rel] [sy] ["F9]
+\definemathsymbol [Cup] [bin] [sy] ["FA]
+\definemathsymbol [doublecup] [bin] [sy] ["FA] % Cup
+\definemathsymbol [Cap] [bin] [sy] ["FB]
+\definemathsymbol [doublecap] [bin] [sy] ["FB]
+\definemathsymbol [curlywedge] [bin] [sy] ["84]
+\definemathsymbol [curlyvee] [bin] [sy] ["85]
+\definemathsymbol [leftthreetimes] [bin] [mb] ["D0]
+\definemathsymbol [rightthreetimes] [bin] [mb] ["D1]
+\definemathsymbol [subseteqq] [rel] [mb] ["EE]
+\definemathsymbol [supseteqq] [rel] [mb] ["EF]
+\definemathsymbol [bumpeq] [rel] [sy] ["C8]
+\definemathsymbol [Bumpeq] [rel] [sy] ["C7]
+\definemathsymbol [llless] [rel] [mb] ["DE]
+\definemathsymbol [lll] [rel] [mb] ["DE] % llless
+\definemathsymbol [gggtr] [rel] [mb] ["DF]
+\definemathsymbol [ggg] [rel] [mb] ["DF] % gggtr
+\definemathsymbol [ulcorner] [open] [ma] ["5B] [ma] ["5B]
+\definemathsymbol [urcorner] [close] [ma] ["5C] [ma] ["5C]
+\definemathsymbol [circledS] [ord] [mb] ["CA]
+\definemathsymbol [pitchfork] [rel] [ma] ["F3]
+\definemathsymbol [dotplus] [bin] [sy] ["89]
+\definemathsymbol [backsim] [rel] [sy] ["24]
+\definemathsymbol [backsimeq] [rel] [sy] ["27]
+\definemathsymbol [llcorner] [open] [ma] ["5D] [ma] ["5D]
+\definemathsymbol [lrcorner] [close] [ma] ["5E] [ma] ["5E]
+\definemathsymbol [complement] [ord] [mb] ["94]
+\definemathsymbol [intercal] [bin] [ma] ["03] % !!
+\definemathsymbol [circledcirc] [bin] [sy] ["E6]
+\definemathsymbol [circledast] [bin] [sy] ["E7]
+\definemathsymbol [circleddash] [bin] [mb] ["CC]
+
+\stopmathcollection
+
+\startmathcollection [lbr]
+
+\definemathsymbol [lvertneqq] [rel] [ma] ["DE]
+\definemathsymbol [gvertneqq] [rel] [ma] ["DE]
+\definemathsymbol [nleq] [rel] [ma] ["9C]
+\definemathsymbol [ngeq] [rel] [ma] ["9D]
+\definemathsymbol [nless] [rel] [ma] ["9A]
+\definemathsymbol [ngtr] [rel] [ma] ["9B]
+\definemathsymbol [nprec] [rel] [ma] ["E5]
+\definemathsymbol [nsucc] [rel] [ma] ["E6]
+\definemathsymbol [lneqq] [rel] [ma] ["DC]
+\definemathsymbol [gneqq] [rel] [ma] ["DE]
+\definemathsymbol [nleqslant] [rel] [ma] ["D6]
+\definemathsymbol [ngeqslant] [rel] [ma] ["D7]
+\definemathsymbol [lneq] [rel] [ma] ["DA]
+\definemathsymbol [gneq] [rel] [ma] ["DB]
+\definemathsymbol [npreceq] [rel] [ma] ["E7]
+\definemathsymbol [nsucceq] [rel] [ma] ["E8]
+\definemathsymbol [precnsim] [rel] [ma] ["EB]
+\definemathsymbol [succnsim] [rel] [ma] ["EC]
+\definemathsymbol [lnsim] [rel] [ma] ["E0]
+\definemathsymbol [gnsim] [rel] [ma] ["E2]
+\definemathsymbol [nleqq] [rel] [ma] ["D8]
+\definemathsymbol [ngeqq] [rel] [ma] ["D9]
+\definemathsymbol [precneqq] [rel] [ma] ["E9]
+\definemathsymbol [succneqq] [rel] [ma] ["EA]
+\definemathsymbol [precnapprox] [rel] [ma] ["ED]
+\definemathsymbol [succnapprox] [rel] [ma] ["EE]
+\definemathsymbol [lnapprox] [rel] [ma] ["E4]
+\definemathsymbol [gnapprox] [rel] [ma] ["E3]
+\definemathsymbol [nsim] [rel] [ma] ["96]
+\definemathsymbol [ncong] [rel] [ma] ["99]
+\definemathsymbol [diagup] [ord] [mb] ["CD]
+\definemathsymbol [diagdown] [ord] [mb] ["D8]
+\definemathsymbol [varsubsetneq] [rel] [ma] ["D0]
+\definemathsymbol [varsupsetneq] [rel] [ma] ["D1]
+\definemathsymbol [nsubseteqq] [rel] [ma] ["CA]
+\definemathsymbol [nsupseteqq] [rel] [ma] ["CB]
+\definemathsymbol [subsetneqq] [rel] [ma] ["CE]
+\definemathsymbol [supsetneqq] [rel] [ma] ["CF]
+\definemathsymbol [varsubsetneqq] [rel] [ma] ["D2]
+\definemathsymbol [varsupsetneqq] [rel] [ma] ["D3]
+\definemathsymbol [subsetneq] [rel] [ma] ["CC]
+\definemathsymbol [supsetneq] [rel] [ma] ["CD]
+\definemathsymbol [nsubseteq] [rel] [ma] ["C8]
+\definemathsymbol [nsupseteq] [rel] [ma] ["C9]
+\definemathsymbol [nparallel] [rel] [ma] ["F7]
+\definemathsymbol [nmid] [rel] [ma] ["F6]
+\definemathsymbol [nshortmid] [rel] [ma] ["F4]
+\definemathsymbol [nshortparallel] [rel] [ma] ["F5]
+\definemathsymbol [nvdash] [rel] [ma] ["F8]
+\definemathsymbol [nVdash] [rel] [ma] ["F9]
+\definemathsymbol [nvDash] [rel] [ma] ["FA]
+\definemathsymbol [nVDash] [rel] [ma] ["FB]
+\definemathsymbol [ntrianglerighteq] [rel] [ma] ["F2]
+\definemathsymbol [ntrianglelefteq] [rel] [ma] ["F1]
+\definemathsymbol [ntriangleleft] [rel] [ma] ["EF]
+\definemathsymbol [ntriangleright] [rel] [ma] ["F0]
+\definemathsymbol [nleftarrow] [rel] [ma] ["32]
+\definemathsymbol [nrightarrow] [rel] [ma] ["33]
+\definemathsymbol [nLeftarrow] [rel] [ma] ["66]
+\definemathsymbol [nRightarrow] [rel] [ma] ["68]
+\definemathsymbol [nLeftrightarrow] [rel] [ma] ["67]
+\definemathsymbol [nleftrightarrow] [rel] [ma] ["34]
+\definemathsymbol [divideontimes] [bin] [mb] ["F7]
+\definemathsymbol [varnothing] [ord] [sy] ["53]
+\definemathsymbol [nexists] [ord] [ma] ["20]
+\definemathsymbol [Finv] [ord] [mb] ["90]
+\definemathsymbol [Game] [ord] [mb] ["91]
+\definemathsymbol [mho] [ord] [mb] ["92]
+\definemathsymbol [eth] [ord] [ma] ["03] % !!
+\definemathsymbol [eqsim] [rel] [sy] ["99]
+\definemathsymbol [beth] [ord] [mb] ["95]
+\definemathsymbol [gimel] [ord] [mb] ["96]
+\definemathsymbol [daleth] [ord] [mb] ["97]
+\definemathsymbol [lessdot] [bin] [mb] ["DC]
+\definemathsymbol [gtrdot] [bin] [mb] ["DD]
+\definemathsymbol [ltimes] [bin] [mb] ["CF]
+\definemathsymbol [rtimes] [bin] [mb] ["CE]
+\definemathsymbol [shortmid] [rel] [mb] ["F4]
+\definemathsymbol [shortparallel] [rel] [mb] ["F5]
+\definemathsymbol [smallsetminus] [bin] [mb] ["D8]
+\definemathsymbol [thicksim] [rel] [sy] ["18] % not that thick
+\definemathsymbol [thickapprox] [rel] [sy] ["19] % not that thick
+\definemathsymbol [approxeq] [rel] [sy] ["9D]
+\definemathsymbol [succapprox] [rel] [mb] ["ED]
+\definemathsymbol [precapprox] [rel] [mb] ["EC]
+\definemathsymbol [curvearrowleft] [rel] [ma] ["87]
+\definemathsymbol [curvearrowright] [rel] [ma] ["88]
+\definemathsymbol [digamma] [ord] [ma] ["03] % !!
+\definemathsymbol [varkappa] [ord] [mb] ["9B]
+\definemathsymbol [Bbbk] [ord] [ma] ["6B]
+\definemathsymbol [hslash] [ord] [mb] ["9D]
+\definemathsymbol [hbar] [ord] [ma] ["1B]
+\definemathsymbol [backepsilon] [rel] [ma] ["03] % !!
+
+\stopmathcollection
+
+\startmathcollection [lbr]
+
+\definemathsymbol [yen] [nothing] [ma] ["03] % !!
+\definemathsymbol [checkmark] [nothing] [ma] ["AC]
+\definemathsymbol [circledR] [nothing] [mb] ["C9]
+\definemathsymbol [maltese] [nothing] [mb] ["CB]
+
+\stopmathcollection
+
+\startmathcollection [lbr]
+
+\definemathsymbol [dashrightarrow] [rel] [ma] ["3A]
+\definemathsymbol [dashleftarrow] [rel] [ma] ["38]
+\definemathcommand [dasharrow] [rel] {\dashleftarrow\mkern-15.8mu\dashrightarrow}
+%definemathcommand [Join] [rel] {\mathchar"0D6F\mkern-15.8mu\mathchar"0D6E} % !!
+
+\stopmathcollection
+
+\startmathcollection[lbr]
+
+\definemathcharacter [91] [open] [mi] ["86]
+\definemathcharacter [93] [close] [mi] ["87]
+\definemathcharacter [(] [open] [mi] ["84]
+\definemathcharacter [)] [close] [mi] ["85]
+\definemathcharacter [/] [nothing] [mi] ["3D]
+\definemathcharacter [=] [rel] [sy] ["83]
+\definemathcharacter [+] [bin] [sy] ["82]
+
+\definemathcharacter [91] [nothing] [mi] ["86] [ex] ["02]
+\definemathcharacter [93] [nothing] [mi] ["87] [ex] ["03]
+\definemathcharacter [(] [nothing] [mi] ["84] [ex] ["00]
+\definemathcharacter [)] [nothing] [mi] ["85] [ex] ["01]
+\definemathcharacter [/] [nothing] [mi] ["3D] [ex] ["0E]
+
+\stopmathcollection
+
+% \startmathcollection[lbr]
+%
+% \definemathcharacter [:] [punct] [tf] ["3A] % unbelievable
+% \definemathcharacter [;] [punct] [tf] ["3B] % unbelievable
+%
+% \stopmathcollection
+
+\startmathcollection[lbr]
+
+\definemathsymbol [ldbrack] [open] [mi] ["82] [ex] ["82]
+\definemathsymbol [rdbrack] [close] [mi] ["83] [ex] ["83]
+\definemathsymbol [surfintop] [op] [ex] ["90]
+\definemathsymbol [midintop] [op] [ex] ["92]
+\definemathsymbol [midointop] [op] [ex] ["93]
+\definemathsymbol [midsurfintop] [op] [ex] ["94]
+\definemathsymbol [largeint] [op] [ex] ["5A] [ex] ["95]
+
+% \definemathcommand [surfint] [nolop] {\surfintop}
+% \definemathcommand [midint] [nolop] {\midintop}
+% \definemathcommand [midoint] [nolop] {\midointop}
+% \definemathcommand [midsurfint] [nolop] {\midsurfintop}
+
+\definemathsymbol [surfint] [nolop] [ex] ["90]
+\definemathsymbol [midint] [nolop] [ex] ["92]
+\definemathsymbol [midoint] [nolop] [ex] ["93]
+\definemathsymbol [midsurfint] [nolop] [ex] ["94]
+
+\definemathsymbol [dblint] [ord] [mi] ["88]
+\definemathsymbol [trplint] [ord] [mi] ["89]
+\definemathsymbol [contint] [ord] [mi] ["8A]
+\definemathsymbol [surfint] [ord] [mi] ["8B]
+\definemathsymbol [volint] [ord] [mi] ["8C]
+\definemathsymbol [clwint] [ord] [mi] ["8D]
+\definemathsymbol [cclwcint] [ord] [mi] ["8E]
+\definemathsymbol [clwcint] [ord] [mi] ["8F]
+\definemathsymbol [bowtie] [rel] [mi] ["F6]
+\definemathsymbol [models] [rel] [sy] ["EE]
+\definemathsymbol [doteq] [rel] [sy] ["C9]
+\definemathsymbol [cong] [rel] [sy] ["9B]
+\definemathsymbol [hbar] [ord] [mi] ["9D]
+\definemathsymbol [neq] [rel] [ma] ["94]
+\definemathsymbol [rightleftharpoons] [rel] [ma] ["7A]
+\definemathsymbol [leftrightharpoons] [rel] [ma] ["79]
+\definemathsymbol [hookleftarrow] [rel] [ma] ["3C]
+\definemathsymbol [hookrightarrow] [rel] [ma] ["3E]
+\definemathsymbol [mapsto] [rel] [ma] ["2C]
+
+\definemathcommand [longmapsto] {\mapstochar\longrightarrow}
+
+\stopmathcollection
+
+\startmathcollection[lbr]
+
+\definemathsymbol [Gamma] [alpha] [ucgreek] ["00]
+\definemathsymbol [Delta] [alpha] [ucgreek] ["01]
+\definemathsymbol [Theta] [alpha] [ucgreek] ["02]
+\definemathsymbol [Lambda] [alpha] [ucgreek] ["03]
+\definemathsymbol [Xi] [alpha] [ucgreek] ["04]
+\definemathsymbol [Pi] [alpha] [ucgreek] ["05]
+\definemathsymbol [Sigma] [alpha] [ucgreek] ["06]
+\definemathsymbol [Upsilon] [alpha] [ucgreek] ["07]
+\definemathsymbol [Phi] [alpha] [ucgreek] ["08]
+\definemathsymbol [Psi] [alpha] [ucgreek] ["09]
+\definemathsymbol [Omega] [alpha] [ucgreek] ["0A]
+
+\definemathsymbol [varGamma] [ord] [vargreek] ["00]
+\definemathsymbol [varDelta] [ord] [vargreek] ["01]
+\definemathsymbol [varTheta] [ord] [vargreek] ["02]
+\definemathsymbol [varLambda] [ord] [vargreek] ["03]
+\definemathsymbol [varXi] [ord] [vargreek] ["04]
+\definemathsymbol [varPi] [ord] [vargreek] ["05]
+\definemathsymbol [varSigma] [ord] [vargreek] ["06]
+\definemathsymbol [varUpsilon] [ord] [vargreek] ["07]
+\definemathsymbol [varPhi] [ord] [vargreek] ["08]
+\definemathsymbol [varPsi] [ord] [vargreek] ["09]
+\definemathsymbol [varOmega] [ord] [vargreek] ["0A]
+
+\stopmathcollection
+
+% we define the whole lot, although only a few differ (esp dot)
+
+\startmathcollection[lbr]
+
+\definemathsymbol [acute] [accent] [tf] ["13] % mr -> tf
+\definemathsymbol [grave] [accent] [tf] ["12] % mr -> tf
+\definemathsymbol [ddot] [accent] [tf] ["7F] % mr -> tf
+\definemathsymbol [tilde] [accent] [tf] ["7E] % mr -> tf
+\definemathsymbol [bar] [accent] [tf] ["16] % mr -> tf
+\definemathsymbol [breve] [accent] [tf] ["15] % mr -> tf
+\definemathsymbol [check] [accent] [tf] ["14] % mr -> tf
+\definemathsymbol [hat] [accent] [tf] ["5E] % mr -> tf
+\definemathsymbol [vec] [accent] [mi] ["7E] % [ord]
+\definemathsymbol [dot] [accent] [tf] ["05] % mr -> tf, 5F -> 05
+\definemathsymbol [widetilde] [accent] [ex] ["65] % [ord]
+\definemathsymbol [widehat] [accent] [ex] ["62] % [ord]
+
+\stopmathcollection
+
+\def\LBRroot#1#2%
+ {\setbox\zerocount\hbox{$\mathsurround\zeropoint#1\sqrt{#2}$}
+ \dimen@\ht\zerocount \advance\dimen@-\dp\zerocount
+ \mkern5mu\raise.6\dimen@\copy\rootbox \mkern-7.5mu \box\zerocount}
+
+\def\LBRmatrix#1%
+ {\null\,\vcenter{\normalbaselines\mathsurround\zeropoint
+ \ialign{\hfil$##$\hfil&&\quad\hfil$##$\hfil\crcr
+ \mathstrut\crcr\noalign{\kern-0.9\baselineskip}
+ #1\crcr\mathstrut\crcr\noalign{\kern-0.9\baselineskip}}}\,}
+
+\startrawmathcollection[lbr]
+
+\definemathcommand [mathstrut] {\vphantom{f}}
+\definemathcommand [joinrel] {\mathrel{\mkern-4mu}}
+\definemathcommand [r@@t] {\LBRroot}
+\definemathcommand [matrix] {\LBRmatrix}
+
+\stoprawmathcollection
+
+\def\LBRbig {\@@dobig{8.20}}
+\def\LBRBig {\@@dobig{10.80}}
+\def\LBRbigg {\@@dobig{13.42}}
+\def\LBRBigg {\@@dobig{16.03}}
+\def\LBRbiggg{\@@dobig{17.72}}
+\def\LBRBiggg{\@@dobig{21.25}}
+
+% \def\LBRbig {\@@dobig{0.820}}
+% \def\LBRBig {\@@dobig{1.080}}
+% \def\LBRbigg {\@@dobig{1.342}}
+% \def\LBRBigg {\@@dobig{1.603}}
+% \def\LBRbiggg{\@@dobig{1.772}}
+% \def\LBRBiggg{\@@dobig{2.125}}
+
+\startrawmathcollection[lbr]
+
+\definemathcommand [big] {\LBRbig}
+\definemathcommand [Big] {\LBRBig}
+\definemathcommand [bigg] {\LBRbigg}
+\definemathcommand [Bigg] {\LBRBigg}
+\definemathcommand [biggg] {\LBRbiggg}
+\definemathcommand [Biggg] {\LBRBiggg}
+
+\stoprawmathcollection
+
+\startrawmathcollection[lbr]
+
+\definemathcommand [bigggl] [open] {\biggg}
+\definemathcommand [bigggr] [close] {\biggg}
+\definemathcommand [Bigggl] [open] {\Biggg}
+\definemathcommand [Bigggr] [close] {\Biggg}
+
+\stoprawmathcollection
+
+\protect \endinput