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Related theorems Unicode version |
| Description: Inference from Theorem 19.21 of [Margaris] p. 90. (Restricted quantifier version.) |
| Ref | Expression |
|---|---|
| r19.21aiv.1 |
|
| Ref | Expression |
|---|---|
| r19.21aiv |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ax-17 968 |
. 2
| |
| 2 | r19.21aiv.1 |
. 2
| |
| 3 | 1, 2 | r19.21ai 1704 |
1
|