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| Description: Syllogism inference. (A bit of trivia: this is the most commonly referenced assertion in our database. In second place is ax-mp 6, followed by visset 1350, bitr 151, imp 277, and exp 291. The Metamath program command 'show usage' shows the number of references.) |
| Ref | Expression |
|---|---|
| syl.1 |
|
| syl.2 |
|
| Ref | Expression |
|---|---|
| syl |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | syl.1 |
. 2
| |
| 2 | syl.2 |
. . . 4
| |
| 3 | 2 | a1i 7 |
. . 3
|
| 4 | 3 | a2i 8 |
. 2
|
| 5 | 1, 4 | ax-mp 6 |
1
|