Description: The set of integer numbers is equinumerous to omega (the set of finite ordinal numbers). (Contributed by Glauco Siliprandi, 17-Aug-2020)
Ref | Expression | ||
---|---|---|---|
Assertion | zenom | ⊢ ℤ ≈ ω |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | znnen | ⊢ ℤ ≈ ℕ | |
2 | nnenom | ⊢ ℕ ≈ ω | |
3 | 1 2 | entri | ⊢ ℤ ≈ ω |