| Intuitionistic Logic Explorer | 
      
      
      < Previous  
      Next >
      
       Nearby theorems  | 
  ||
| Mirrors > Home > ILE Home > Th. List > a1i | Unicode version | ||
| Description: Inference derived from Axiom ax-1 6. See a1d 22 for an explanation of our informal use of the terms "inference" and "deduction". See also the comment in syld 45. (Contributed by NM, 5-Aug-1993.) | 
| Ref | Expression | 
|---|---|
| a1i.1 | 
 | 
| Ref | Expression | 
|---|---|
| a1i | 
 | 
| Step | Hyp | Ref | Expression | 
|---|---|---|---|
| 1 | a1i.1 | 
. 2
 | |
| 2 | ax-1 6 | 
. 2
 | |
| 3 | 1, 2 | ax-mp 5 | 
1
 | 
| Copyright terms: Public domain | W3C validator |