  <b style="font-size: 1.1em; font-family: var(--serif-fonts);">The tensor product of S-modules is a convolution product</b>
      <span style="font-size: 19px"> (<a title="All pages tagged 'maths'." href="./tags/maths.html" rel="tag">maths</a>) </span>
    </div>
    <p></p>
    Classically, (algebraic) symmetric <a href="https://ncatlab.org/nlab/show/operad">operads</a> are defined as certain graded objects,
each level coming equipped with a nice action of the symmetric group,
which are also monoids in so