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Mirrors > Home > ILE Home > Th. List > Mathboxes > ax-inf2 | Unicode version |
Description: Another axiom of infinity in a constructive setting (see ax-infvn 10066). (Contributed by BJ, 14-Nov-2019.) (New usage is discouraged.) |
Ref | Expression |
---|---|
ax-inf2 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | vx |
. . . . 5
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2 | va |
. . . . 5
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3 | 1, 2 | wel 1394 |
. . . 4
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4 | 1 | cv 1242 |
. . . . . 6
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5 | c0 3224 |
. . . . . 6
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6 | 4, 5 | wceq 1243 |
. . . . 5
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7 | vy |
. . . . . . . . 9
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8 | 7 | cv 1242 |
. . . . . . . 8
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9 | 8 | csuc 4102 |
. . . . . . 7
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10 | 4, 9 | wceq 1243 |
. . . . . 6
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11 | 2 | cv 1242 |
. . . . . 6
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12 | 10, 7, 11 | wrex 2307 |
. . . . 5
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13 | 6, 12 | wo 629 |
. . . 4
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14 | 3, 13 | wb 98 |
. . 3
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15 | 14, 1 | wal 1241 |
. 2
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16 | 15, 2 | wex 1381 |
1
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Colors of variables: wff set class |
This axiom is referenced by: bj-omex2 10102 bj-nn0sucALT 10103 |
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