---

Step * 1 of Lemma RegularExtension


1. a : Set{i:l}
⊢ (a ⊆ regext(setTC(a)))
BY
{ ((UseTrans ⌜setTC(a)⌝⋅ THEN Auto) THEN BLemma `subset-regext` THEN Auto) }

---

Latex:

---

Latex:

1.  a  :  Set\{i:l\}
\mvdash{}  (a  \msubseteq{}  regext(setTC(a)))


By

---

Latex:
((UseTrans  \mkleeneopen{}setTC(a)\mkleeneclose{}\mcdot{}  THEN  Auto)  THEN  BLemma  `subset-regext`  THEN  Auto)

---

Home Index