---

Step * of Lemma inv-rel_wf

∀[A,B:Type]. ∀[f:A ⟶ B]. ∀[finv:B ⟶ (A?)].  (inv-rel(A;B;f;finv) ∈ ℙ)
BY
{ (Unfold `inv-rel` 0 THEN Auto) }

---

Latex:

---

Latex:
\mforall{}[A,B:Type].  \mforall{}[f:A  {}\mrightarrow{}  B].  \mforall{}[finv:B  {}\mrightarrow{}  (A?)].    (inv-rel(A;B;f;finv)  \mmember{}  \mBbbP{})


By

---

Latex:
(Unfold  `inv-rel`  0  THEN  Auto)

---

Home Index