Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > MPE Home > Th. List > df-neg | Structured version Visualization version Unicode version |
Description: Define the negative of a number (unary minus). We use different symbols for unary minus () and subtraction () to prevent syntax ambiguity. See cneg 10267 for a discussion of this. (Contributed by NM, 10-Feb-1995.) |
Ref | Expression |
---|---|
df-neg |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cA | . . 3 | |
2 | 1 | cneg 10267 | . 2 |
3 | cc0 9936 | . . 3 | |
4 | cmin 10266 | . . 3 | |
5 | 3, 1, 4 | co 6650 | . 2 |
6 | 2, 5 | wceq 1483 | 1 |
Copyright terms: Public domain | W3C validator |