Metamath Proof Explorer
Description: Given, a,b and a "definition" for c, c is demonstrated. (Contributed by Jarvin Udandy, 8-Sep-2020)
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|
Ref |
Expression |
|
Hypotheses |
plcofph.1 |
|
|
|
plcofph.2 |
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|
|
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 |
|