Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > ILE Home > Th. List > ax-12 | Unicode version |
Description: Rederive the original version of the axiom from ax-i12 1398. (Contributed by Mario Carneiro, 3-Feb-2015.) |
Ref | Expression |
---|---|
ax-12 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ax-i12 1398 | . . . 4 | |
2 | 1 | ori 642 | . . 3 |
3 | 2 | ord 643 | . 2 |
4 | ax-4 1400 | . 2 | |
5 | 3, 4 | syl6 29 | 1 |
Colors of variables: wff set class |
Syntax hints: wn 3 wi 4 wo 629 wal 1241 wceq 1243 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 99 ax-ia2 100 ax-ia3 101 ax-in2 545 ax-io 630 ax-i12 1398 ax-4 1400 |
This theorem depends on definitions: df-bi 110 |
This theorem is referenced by: (None) |
Copyright terms: Public domain | W3C validator |