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Sage Reference Manual

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Arithmetic Subgroups of `{\rm SL}_2({\bf Z})`
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This chapter describes the basic functionality for finite index subgroups of
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the modular group `{\rm SL}_2(\ZZ)`.
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.. toctree::
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   :maxdepth: 2
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   sage/modular/arithgroup/arithgroup_generic
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   sage/modular/arithgroup/arithgroup_perm
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   sage/modular/arithgroup/arithgroup_element
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   sage/modular/arithgroup/congroup_generic
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   sage/modular/arithgroup/congroup_gammaH
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   sage/modular/arithgroup/congroup_gamma1
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   sage/modular/arithgroup/congroup_gamma0
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   sage/modular/arithgroup/congroup_gamma
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   sage/modular/arithgroup/congroup_sl2z
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   sage/modular/arithgroup/farey_symbol
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   sage/modular/arithgroup/congroup
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.. include:: ../footer.txt
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