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| Mirrors > Home > MPE Home > Th. List > 1zzd | Structured version Visualization version GIF version | ||
| Description: One is an integer, deduction form. (Contributed by David A. Wheeler, 6-Dec-2018.) |
| Ref | Expression |
|---|---|
| 1zzd | ⊢ (𝜑 → 1 ∈ ℤ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 1z 12647 | . 2 ⊢ 1 ∈ ℤ | |
| 2 | 1 | a1i 11 | 1 ⊢ (𝜑 → 1 ∈ ℤ) |
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