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| Mirrors > Home > MPE Home > Th. List > jca | Structured version Visualization version Unicode version | ||
| Description: Deduce conjunction of the
consequents of two implications ("join
consequents with 'and'"). Equivalent to the natural deduction rule
|
| Ref | Expression |
|---|---|
| jca.1 |
|
| jca.2 |
|
| Ref | Expression |
|---|---|
| jca |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | jca.1 |
. 2
| |
| 2 | jca.2 |
. 2
| |
| 3 | pm3.2 463 |
. 2
| |
| 4 | 1, 2, 3 | sylc 65 |
1
|
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