| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > 2m1e1 | Structured version Visualization version GIF version | ||
| Description: 2 - 1 = 1. The result is on the right-hand-side to be consistent with similar proofs like 4p4e8 12369. (Contributed by David A. Wheeler, 4-Jan-2017.) (Proof shortened by Umit Teoman Dogan, 10-Jun-2026.) |
| Ref | Expression |
|---|---|
| 2m1e1 | ⊢ (2 − 1) = 1 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ax-1cn 11128 | . 2 ⊢ 1 ∈ ℂ | |
| 2 | df-2 12277 | . 2 ⊢ 2 = (1 + 1) | |
| 3 | 1, 1, 2 | mvrladdi 11445 | 1 ⊢ (2 − 1) = 1 |
| Copyright terms: Public domain | W3C validator |