---

Step * 1 of Lemma injection-bijection


1. n : ℕ@i
2. f : ℕn →⟶ ℕn@i
3. Inj(ℕn;ℕn;f)
⊢ Surj(ℕn;ℕn;f)
BY
{ (BLemma `injection-is-surjection` THEN Auto) }

---

Latex:

---

Latex:

1.  n  :  \mBbbN{}@i
2.  f  :  \mBbbN{}n  \mrightarrow{}{}\mrightarrow{}  \mBbbN{}n@i
3.  Inj(\mBbbN{}n;\mBbbN{}n;f)
\mvdash{}  Surj(\mBbbN{}n;\mBbbN{}n;f)


By

---

Latex:
(BLemma  `injection-is-surjection`  THEN  Auto)

---

Home Index