我试图在段落中添加<hx>标记,比如:
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit.Cras <h2>placerat</h2> justo vel risus porta cursus. Nullam eget sem nibh.Sed <h3>mattis</h3> facilisis rhoncus.
Context {A : Type} {P : Stream A -> Prop}.Hypothesis decide_P : forall s : Stream A, {P s} + {~ P s}.Program Fixpoint take_while (s : Stream A) if decide_P但是当我尝试使用这个函数进行计算时