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Mirrors > Home > ILE Home > Th. List > jca | Unicode version |
Description: Deduce conjunction of the consequents of two implications ("join consequents with 'and'"). (Contributed by NM, 5-Aug-1993.) (Proof shortened by Wolf Lammen, 25-Oct-2012.) |
Ref | Expression |
---|---|
jca.1 |
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jca.2 |
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Ref | Expression |
---|---|
jca |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | jca.1 |
. 2
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2 | jca.2 |
. 2
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3 | pm3.2 139 |
. 2
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4 | 1, 2, 3 | sylc 62 |
1
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