![]() |
Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
|
Mirrors > Home > ILE Home > Th. List > ax-io | Unicode version |
Description: Definition of 'or'. One of the axioms of propositional logic. (Contributed by Mario Carneiro, 31-Jan-2015.) Use its alias jaob 710 instead. (New usage is discouraged.) |
Ref | Expression |
---|---|
ax-io |
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | wph |
. . . 4
![]() ![]() | |
2 | wch |
. . . 4
![]() ![]() | |
3 | 1, 2 | wo 708 |
. . 3
![]() ![]() ![]() ![]() ![]() ![]() |
4 | wps |
. . 3
![]() ![]() | |
5 | 3, 4 | wi 4 |
. 2
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
6 | 1, 4 | wi 4 |
. . 3
![]() ![]() ![]() ![]() ![]() ![]() |
7 | 2, 4 | wi 4 |
. . 3
![]() ![]() ![]() ![]() ![]() ![]() |
8 | 6, 7 | wa 104 |
. 2
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
9 | 5, 8 | wb 105 |
1
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
Colors of variables: wff set class |
This axiom is referenced by: jaob 710 |
Copyright terms: Public domain | W3C validator |