Mathbox for Mykola Mostovenko |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > ILE Home > Th. List > Mathboxes > ax1hfs | Unicode version |
Description: Heyting's formal system Axiom #1 from [Heyting] p. 127. (Contributed by MM, 11-Aug-2018.) |
Ref | Expression |
---|---|
ax1hfs |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ax-ia3 106 | . 2 | |
2 | 1 | pm2.43i 48 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 102 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia3 106 |
This theorem is referenced by: (None) |
Copyright terms: Public domain | W3C validator |