Metamath Proof Explorer
Description: Given, a,b and a "definition" for c, c is demonstrated. (Contributed by Jarvin Udandy, 8-Sep-2020)
|
|
Ref |
Expression |
|
Hypotheses |
plcofph.1 |
|
|
|
plcofph.2 |
|
|
|
plcofph.3 |
|
|
Assertion |
plcofph |
|
Proof
| Step |
Hyp |
Ref |
Expression |
| 1 |
|
plcofph.1 |
|
| 2 |
|
plcofph.2 |
|
| 3 |
|
plcofph.3 |
|
| 4 |
|
pm3.24 |
|
| 5 |
2 4
|
pm3.2i |
|
| 6 |
5
|
a1i |
|
| 7 |
6 5
|
pm3.2i |
|
| 8 |
1
|
bicomi |
|
| 9 |
8
|
biimpi |
|
| 10 |
7 9
|
ax-mp |
|