Theodosius <Bithynius>; Clavius, Christoph, Theodosii Tripolitae Sphaericorum libri tres

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        <div xml:id="echoid-div300" type="section" level="1" n="138">
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            <s xml:id="echoid-s3671" xml:space="preserve">
              <pb o="96" file="108" n="108" rhead=""/>
            modo, quoniam ſimiles ſunt arcus BN, Gk, erit BE, alteri polo propior ma-
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            ior, quàm vt ſimilis ſit arcui Gk, ab eodem polo remotiori. </s>
            <s xml:id="echoid-s3672" xml:space="preserve">Itaque ſi in ſphæ-
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            ra maximus circulus aliquẽ circulum tangat, &</s>
            <s xml:id="echoid-s3673" xml:space="preserve">c. </s>
            <s xml:id="echoid-s3674" xml:space="preserve">Quod erat demonſtrandum.</s>
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        <div xml:id="echoid-div302" type="section" level="1" n="139">
          <head xml:id="echoid-head153" xml:space="preserve">FINIS LIBRI III. THEODOSII.</head>
          <head xml:id="echoid-head154" xml:space="preserve">AD LECTOREM.</head>
          <p style="it">
            <s xml:id="echoid-s3676" xml:space="preserve">POTERVNT, ſi placet, hæ duæ figuræ tribus illis propoſitionis
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            ſecundæ lib. </s>
            <s xml:id="echoid-s3677" xml:space="preserve">3. </s>
            <s xml:id="echoid-s3678" xml:space="preserve">adiungi, vt omnes caſus lineæ perpendicularis FL, per-
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            ſpiciantur. </s>
            <s xml:id="echoid-s3679" xml:space="preserve">In prima namque harum figurarum ſegmentum inſiſtens
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              <figure xlink:label="fig-108-01" xlink:href="fig-108-01a" number="112">
                <image file="108-01" xlink:href="http://echo.mpiwg-berlin.mpg.de/zogilib?fn=/permanent/library/YC97H42F/figures/108-01"/>
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            AFB, eſt ſemicircu-
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            lus, caditq́, perpendicu
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            laris FL, intra ſegmen
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            tum ADB: </s>
            <s xml:id="echoid-s3680" xml:space="preserve">In poſte-
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            riore autẽ eadem FL,
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            in ipſam circunferen-
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            tiam ADB, cadit,
              <lb/>
            exiſtente eodem ſegmen
              <lb/>
            to inſiſtente AFB, ſe-
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            micirculo; </s>
            <s xml:id="echoid-s3681" xml:space="preserve">quemadmo-
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            dum & </s>
            <s xml:id="echoid-s3682" xml:space="preserve">in tertia figura dictæ propoſitionis idem ſegmentum inſiſtens
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            AFB, ſemicirculus eſt, linea́ perpendicularis FL, extra ſegmentum
              <lb/>
            ADB, cadit. </s>
            <s xml:id="echoid-s3683" xml:space="preserve">Hoc, benigne lector, te latere noluimus.</s>
            <s xml:id="echoid-s3684" xml:space="preserve"/>
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