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Mirrors > Home > ILE Home > Th. List > rspc2gv | Unicode version |
Description: Restricted specialization with two quantifiers, using implicit substitution. (Contributed by BJ, 2-Dec-2021.) |
Ref | Expression |
---|---|
rspc2gv.1 |
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Ref | Expression |
---|---|
rspc2gv |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-ral 2358 |
. 2
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2 | df-ral 2358 |
. . . . 5
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3 | 2 | imbi2i 224 |
. . . 4
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4 | 3 | albii 1400 |
. . 3
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5 | 19.21v 1796 |
. . . . . 6
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6 | 5 | bicomi 130 |
. . . . 5
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7 | 6 | albii 1400 |
. . . 4
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8 | impexp 259 |
. . . . . . 7
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9 | eleq1 2145 |
. . . . . . . . 9
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10 | eleq1 2145 |
. . . . . . . . 9
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11 | 9, 10 | bi2anan9 571 |
. . . . . . . 8
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12 | rspc2gv.1 |
. . . . . . . 8
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13 | 11, 12 | imbi12d 232 |
. . . . . . 7
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14 | 8, 13 | syl5bbr 192 |
. . . . . 6
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15 | 14 | spc2gv 2697 |
. . . . 5
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16 | 15 | pm2.43a 50 |
. . . 4
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17 | 7, 16 | syl5bi 150 |
. . 3
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18 | 4, 17 | syl5bi 150 |
. 2
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19 | 1, 18 | syl5bi 150 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 104 ax-ia2 105 ax-ia3 106 ax-5 1377 ax-7 1378 ax-gen 1379 ax-ie1 1423 ax-ie2 1424 ax-8 1436 ax-4 1441 ax-17 1460 ax-i9 1464 ax-ial 1468 ax-i5r 1469 ax-ext 2065 |
This theorem depends on definitions: df-bi 115 df-nf 1391 df-sb 1688 df-clab 2070 df-cleq 2076 df-clel 2079 df-ral 2358 df-v 2612 |
This theorem is referenced by: (None) |
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