Description: The set of rational numbers is equinumerous to omega (the set of finite ordinal numbers). (Contributed by Glauco Siliprandi, 24-Dec-2020)
Ref | Expression | ||
---|---|---|---|
Assertion | qenom | ⊢ ℚ ≈ ω |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | qnnen | ⊢ ℚ ≈ ℕ | |
2 | nnenom | ⊢ ℕ ≈ ω | |
3 | 1 2 | entri | ⊢ ℚ ≈ ω |