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<? if (isset($prev_exercise_url)): ?>
<a href="<?= htmlReady($prev_exercise_url) ?>">
<?= Icon::create('arr_1left')->asSvg(24, ['title' => _('Vorige Aufgabe')]) ?>
</a>
<? else: ?>
<span>
<?= Icon::create('arr_1left', Icon::ROLE_INACTIVE)->asSvg(24) ?>
</span>
<? endif ?>
<? if (isset($next_exercise_url)): ?>
<a href="<?= htmlReady($next_exercise_url) ?>">
<?= Icon::create('arr_1right')->asSvg(24, ['title' => _('Nächste Aufgabe')]) ?>
</a>
<? else: ?>
<span>
<?= Icon::create('arr_1right', Icon::ROLE_INACTIVE)->asSvg(24) ?>
</span>
<? endif ?>
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