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Metamath Proof Explorer
Description: 0 minus 0 equals 0. (Contributed by David A. Wheeler, 8-Dec-2018)
|
|
Ref |
Expression |
|
Assertion |
0m0e0 |
⊢ ( 0 − 0 ) = 0 |
Proof
| Step |
Hyp |
Ref |
Expression |
| 1 |
|
0cn |
⊢ 0 ∈ ℂ |
| 2 |
1
|
subidi |
⊢ ( 0 − 0 ) = 0 |