Found the following HTML validation problems:
Math.caracas_symbol.html:51:1 (Math.caracas_symbol.Rd:12): Warning: missing </ul> before </div>
Ops.caracas_symbol.html:51:1 (Ops.caracas_symbol.Rd:12): Warning: missing </ul> before </div>
as.character.caracas_symbol.html:55:1 (as.character.caracas_symbol.Rd:14): Warning: missing </ul> before </div>
as_character.html:46:1 (as_character.Rd:10): Warning: missing </ul> before </div>
diag-set.html:50:1 (diag-set.Rd:13): Warning: missing </ul> before </div>
diag.html:50:1 (diag.Rd:12): Warning: missing </ul> before </div>
diag.caracas_symbol.html:51:1 (diag.caracas_symbol.Rd:12): Warning: missing </ul> before </div>
dim.caracas_symbol.html:47:1 (dim.caracas_symbol.Rd:10): Warning: missing </ul> before </div>
expand_func.html:46:1 (expand_func.Rd:10): Warning: missing </ul> before </div>
expand_trig.html:46:1 (expand_trig.Rd:10): Warning: missing </ul> before </div>
is_sym.html:46:1 (is_sym.Rd:10): Warning: missing </ul> before </div>
matrix_cross_product.html:48:1 (matrix_cross_product.Rd:14): Warning: missing </ul> before </div>
pipe.html:40:1 (pipe.Rd:7): Warning: missing </ul> before </div>
print.caracas_scaled_matrix.html:51:1 (print.caracas_scaled_matrix.Rd:12): Warning: missing </ul> before </div>
print.caracas_symbol.html:69:1 (print.caracas_symbol.Rd:24): Warning: missing </ul> before </div>
simplify.html:46:1 (simplify.Rd:10): Warning: missing </ul> before </div>
sum.caracas_symbol.html:51:1 (sum.caracas_symbol.Rd:12): Warning: missing </ul> before </div>
sym_class.html:46:1 (sym_class.Rd:10): Warning: missing </ul> before </div>
sym_inherits.html:50:1 (sym_inherits.Rd:12): Warning: missing </ul> before </div>
symbol_class.html:46:1 (symbol_class.Rd:10): Warning: missing </ul> before </div>
t.caracas_symbol.html:48:1 (t.caracas_symbol.Rd:11): Warning: missing </ul> before </div>
tex.caracas_scaled_matrix.html:51:1 (tex.caracas_scaled_matrix.Rd:12): Warning: missing </ul> before </div>
to_something.html:50:1 (to_something.Rd:17): Warning: missing </ul> before </div>
vectorfy.html:46:1 (vectorfy.Rd:10): Warning: missing </ul> before </div>