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| Mirrors > Home > MPE Home > Th. List > syl31anc | Structured version Visualization version Unicode version | ||
| Description: Syllogism combined with contraction. (Contributed by NM, 11-Mar-2012.) |
| Ref | Expression |
|---|---|
| syl12anc.1 |
|
| syl12anc.2 |
|
| syl12anc.3 |
|
| syl22anc.4 |
|
| syl31anc.5 |
|
| Ref | Expression |
|---|---|
| syl31anc |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | syl12anc.1 |
. . 3
| |
| 2 | syl12anc.2 |
. . 3
| |
| 3 | syl12anc.3 |
. . 3
| |
| 4 | 1, 2, 3 | 3jca 1242 |
. 2
|
| 5 | syl22anc.4 |
. 2
| |
| 6 | syl31anc.5 |
. 2
| |
| 7 | 4, 5, 6 | syl2anc 693 |
1
|
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