---

Step * 1 of Lemma rec-value-ext

.....subterm..... T:t
1:n
1. x : rec-value()@i
⊢ x ∈ atomic-values() ⋃ (rec-value() × rec-value()) ⋃ (rec-value() + rec-value())
BY
{ D -1 }

1
1. x : co-value()@i
2. (co-value-height(x))↓@i
⊢ x ∈ atomic-values() ⋃ (rec-value() × rec-value()) ⋃ (rec-value() + rec-value())

---

Latex:

---

Latex:
.....subterm.....  T:t
1:n
1.  x  :  rec-value()@i
\mvdash{}  x  \mmember{}  atomic-values()  \mcup{}  (rec-value()  \mtimes{}  rec-value())  \mcup{}  (rec-value()  +  rec-value())


By

---

Latex:
D  -1

---

Home Index