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| Description: Axiom scheme of subset
collection. It is stated with all possible
disjoint variable conditions, to show that this weak form is sufficient.
The antecedent means that |
| Ref | Expression |
|---|---|
| ax-sscoll |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | wph |
. . . . . . . 8
| |
| 2 | vy |
. . . . . . . 8
| |
| 3 | vb |
. . . . . . . . 9
| |
| 4 | 3 | cv 1363 |
. . . . . . . 8
|
| 5 | 1, 2, 4 | wrex 2476 |
. . . . . . 7
|
| 6 | vx |
. . . . . . 7
| |
| 7 | va |
. . . . . . . 8
| |
| 8 | 7 | cv 1363 |
. . . . . . 7
|
| 9 | 5, 6, 8 | wral 2475 |
. . . . . 6
|
| 10 | vd |
. . . . . . . . . . 11
| |
| 11 | 10 | cv 1363 |
. . . . . . . . . 10
|
| 12 | 1, 2, 11 | wrex 2476 |
. . . . . . . . 9
|
| 13 | 12, 6, 8 | wral 2475 |
. . . . . . . 8
|
| 14 | 1, 6, 8 | wrex 2476 |
. . . . . . . . 9
|
| 15 | 14, 2, 11 | wral 2475 |
. . . . . . . 8
|
| 16 | 13, 15 | wa 104 |
. . . . . . 7
|
| 17 | vc |
. . . . . . . 8
| |
| 18 | 17 | cv 1363 |
. . . . . . 7
|
| 19 | 16, 10, 18 | wrex 2476 |
. . . . . 6
|
| 20 | 9, 19 | wi 4 |
. . . . 5
|
| 21 | vz |
. . . . 5
| |
| 22 | 20, 21 | wal 1362 |
. . . 4
|
| 23 | 22, 17 | wex 1506 |
. . 3
|
| 24 | 23, 3 | wal 1362 |
. 2
|
| 25 | 24, 7 | wal 1362 |
1
|
| Colors of variables: wff set class |
| This axiom is referenced by: sscoll2 15644 |
| Copyright terms: Public domain | W3C validator |