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Mirrors > Home > MPE Home > Th. List > reean | Structured version Visualization version Unicode version |
Description: Rearrange restricted existential quantifiers. (Contributed by NM, 27-Oct-2010.) (Proof shortened by Andrew Salmon, 30-May-2011.) |
Ref | Expression |
---|---|
reean.1 |
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reean.2 |
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Ref | Expression |
---|---|
reean |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | an4 865 |
. . . 4
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2 | 1 | 2exbii 1775 |
. . 3
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3 | nfv 1843 |
. . . . 5
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4 | reean.1 |
. . . . 5
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5 | 3, 4 | nfan 1828 |
. . . 4
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6 | nfv 1843 |
. . . . 5
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7 | reean.2 |
. . . . 5
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8 | 6, 7 | nfan 1828 |
. . . 4
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9 | 5, 8 | eean 2181 |
. . 3
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10 | 2, 9 | bitri 264 |
. 2
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11 | r2ex 3061 |
. 2
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12 | df-rex 2918 |
. . 3
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13 | df-rex 2918 |
. . 3
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14 | 12, 13 | anbi12i 733 |
. 2
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15 | 10, 11, 14 | 3bitr4i 292 |
1
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Colors of variables: wff setvar class |
Syntax hints: ![]() ![]() ![]() ![]() ![]() ![]() |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-10 2019 ax-11 2034 ax-12 2047 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-tru 1486 df-ex 1705 df-nf 1710 df-ral 2917 df-rex 2918 |
This theorem is referenced by: reeanv 3107 disjrnmpt2 39375 |
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