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<!ELEMENT LMMLtext (#PCDATA | emphasized | quoted | annotated | defined | formatted | math | code | LMMLcode | referencesLink | citesLink | externalLink)*>
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<!ELEMENT algorithm ((text | image | animation | sound | LMMLtext | table | olist | ulist | math | code | LMMLcode)*)*>
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<!ELEMENT externalLink (#PCDATA | emphasized | quoted | annotated | defined | formatted | math | code | LMMLcode)*>
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<!ELEMENT formula ((text | image | animation | sound | LMMLtext | table | olist | ulist | math | code | LMMLcode)*)*>
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<!ELEMENT proof ((text | image | animation | sound | LMMLtext | table | olist | ulist | math | code | LMMLcode)*)*>
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<!ELEMENT proposition ((text | image | animation | sound | LMMLtext | table | olist | ulist | math | code | LMMLcode)*)*>
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<!ELEMENT quotation ((LMMLtext)*)*>
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<!ELEMENT referencesLink (#PCDATA | emphasized | quoted | annotated | defined | formatted | math | code | LMMLcode | referencesLink)*>
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<!ELEMENT remark ((text | image | animation | sound | LMMLtext | table | olist | ulist | math | code | LMMLcode)*)*>
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<!ELEMENT section ((section | collection | glossary | bibliography | motivation | animation | conclusion | definition | paragraph | remark | example | exercise | illustration | proposition | theorem | proof | algorithm | quotation | formula)*)*>
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<!ELEMENT solution ((text | image | animation | sound | LMMLtext | table | olist | ulist | math | code | LMMLcode)*)*>
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<!ELEMENT theorem ((text | image | animation | sound | LMMLtext | table | olist | ulist | math | code | LMMLcode)*)*>
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<!ELEMENT ulist (item)+>
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