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Mirrors > Home > ILE Home > Th. List > 3reeanv | Unicode version |
Description: Rearrange three existential quantifiers. (Contributed by Jeff Madsen, 11-Jun-2010.) |
Ref | Expression |
---|---|
3reeanv |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | r19.41v 2650 |
. . 3
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2 | reeanv 2664 |
. . . 4
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3 | 2 | anbi1i 458 |
. . 3
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4 | 1, 3 | bitri 184 |
. 2
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5 | df-3an 982 |
. . . . 5
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6 | 5 | 2rexbii 2503 |
. . . 4
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7 | reeanv 2664 |
. . . 4
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8 | 6, 7 | bitri 184 |
. . 3
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9 | 8 | rexbii 2501 |
. 2
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10 | df-3an 982 |
. 2
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11 | 4, 9, 10 | 3bitr4i 212 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() ![]() ![]() |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 710 ax-5 1458 ax-7 1459 ax-gen 1460 ax-ie1 1504 ax-ie2 1505 ax-8 1515 ax-10 1516 ax-11 1517 ax-i12 1518 ax-bndl 1520 ax-4 1521 ax-17 1537 ax-i9 1541 ax-ial 1545 ax-i5r 1546 ax-ext 2175 |
This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-nf 1472 df-sb 1774 df-cleq 2186 df-clel 2189 df-nfc 2325 df-rex 2478 |
This theorem is referenced by: imasgrp2 13180 imasrng 13452 imasring 13560 |
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