在coqtop中启用显式类型索引？

Question

在Coq中，有一个类型层次结构，每个类型表示前一个类型，即Type_0：Type_1，Type_1：Type_2，依此类推。在[user@kvm-centos7-ansible ansible-role-CA]# ./render_jinja2.py this is the rendered template subjectAltName = IP:1, IP:0, IP:., IP:1, IP:., IP:1, IP:7, IP:., IP:1, IP:0, IP:1, DNS:t, DNS:e, DNS:s, DNS:t, DNS:., DNS:c, DNS:r, DNS:a, DNS:p, DNS:c, DNS:o, DNS:., DNS:l, DNS:a, DNS:b, DNS:s, DNS:,, DNS: , DNS:w, DNS:w, DNS:w, DNS:., DNS:c, DNS:r, DNS:a, DNS:p, DNS:c, DNS:o, DNS:., DNS:l, DNS:a, DNS:b, DNS:s, DNS:,, DNS: , DNS:a, DNS:., DNS:c, DNS:r, DNS:a, DNS:p, DNS:c, DNS:o, DNS:., DNS:l, DNS:a, DNS:b, IP:127.0.0.1 extendedKeyUsage = clientAuth,serverAuth . 中，当我输入coqtop时，我得到的Check Type.看起来像是一个矛盾但不是因为Type : Type被隐式索引。

问题：如何启用Type Universe的显式索引？