| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > mulne0d | Structured version Visualization version Unicode version | ||
| Description: The product of two nonzero numbers is nonzero. (Contributed by Mario Carneiro, 27-May-2016.) |
| Ref | Expression |
|---|---|
| msq0d.1 |
|
| mul0ord.2 |
|
| mulne0d.3 |
|
| mulne0d.4 |
|
| Ref | Expression |
|---|---|
| mulne0d |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | mulne0d.3 |
. 2
| |
| 2 | mulne0d.4 |
. 2
| |
| 3 | msq0d.1 |
. . 3
| |
| 4 | mul0ord.2 |
. . 3
| |
| 5 | 3, 4 | mulne0bd 10678 |
. 2
|
| 6 | 1, 2, 5 | mpbi2and 956 |
1
|
| Copyright terms: Public domain | W3C validator |