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<div class="spec-section expanded" style="-webkit-font-smoothing: subpixel-antialiased; margin: 0px 0px 15px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: medium; line-height: inherit; font-family: font-regular; vertical-align: baseline;"><div class="spec-body" style="-webkit-font-smoothing: subpixel-antialiased; margin: 0px; padding: 15px 35px 20px 33px; border: 0px; font-style: inherit; font-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: 14px; line-height: 16px; font-family: inherit; vertical-align: baseline; overflow: hidden;"><div itemprop="description" class="detailssubbox" style="-webkit-font-smoothing: subpixel-antialiased; margin: 0px; padding: 0px; border: 0px; font-style: inherit; font-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: 20px; font-family: inherit; vertical-align: baseline;">Popular Mathematics.</div></div></div>
