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| Mirrors > Home > MPE Home > Th. List > 0elfz | Structured version Visualization version GIF version | ||
| Description: 0 is an element of a finite set of sequential nonnegative integers with a nonnegative integer as upper bound. (Contributed by AV, 6-Apr-2018.) |
| Ref | Expression |
|---|---|
| 0elfz | ⊢ (𝑁 ∈ ℕ0 → 0 ∈ (0...𝑁)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 0nn0 12416 | . . 3 ⊢ 0 ∈ ℕ0 | |
| 2 | 1 | a1i 11 | . 2 ⊢ (𝑁 ∈ ℕ0 → 0 ∈ ℕ0) |
| 3 | id 22 | . 2 ⊢ (𝑁 ∈ ℕ0 → 𝑁 ∈ ℕ0) | |
| 4 | nn0ge0 12426 | . 2 ⊢ (𝑁 ∈ ℕ0 → 0 ≤ 𝑁) | |
| 5 | elfz2nn0 13534 | . 2 ⊢ (0 ∈ (0...𝑁) ↔ (0 ∈ ℕ0 ∧ 𝑁 ∈ ℕ0 ∧ 0 ≤ 𝑁)) | |
| 6 | 2, 3, 4, 5 | syl3anbrc 1344 | 1 ⊢ (𝑁 ∈ ℕ0 → 0 ∈ (0...𝑁)) |
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