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Mirrors > Home > ILE Home > Th. List > fpr | Unicode version |
Description: A function with a domain of two elements. (Contributed by Jeff Madsen, 20-Jun-2010.) (Proof shortened by Andrew Salmon, 22-Oct-2011.) |
Ref | Expression |
---|---|
fpr.1 |
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fpr.2 |
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fpr.3 |
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fpr.4 |
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Ref | Expression |
---|---|
fpr |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | fpr.1 |
. . . . . 6
![]() ![]() ![]() ![]() | |
2 | fpr.2 |
. . . . . 6
![]() ![]() ![]() ![]() | |
3 | fpr.3 |
. . . . . 6
![]() ![]() ![]() ![]() | |
4 | fpr.4 |
. . . . . 6
![]() ![]() ![]() ![]() | |
5 | 1, 2, 3, 4 | funpr 5307 |
. . . . 5
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6 | 3, 4 | dmprop 5141 |
. . . . 5
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7 | 5, 6 | jctir 313 |
. . . 4
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8 | df-fn 5258 |
. . . 4
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9 | 7, 8 | sylibr 134 |
. . 3
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10 | df-pr 3626 |
. . . . . 6
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11 | 10 | rneqi 4891 |
. . . . 5
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12 | rnun 5075 |
. . . . 5
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13 | 1 | rnsnop 5147 |
. . . . . . 7
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14 | 2 | rnsnop 5147 |
. . . . . . 7
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15 | 13, 14 | uneq12i 3312 |
. . . . . 6
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16 | df-pr 3626 |
. . . . . 6
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17 | 15, 16 | eqtr4i 2217 |
. . . . 5
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18 | 11, 12, 17 | 3eqtri 2218 |
. . . 4
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19 | 18 | eqimssi 3236 |
. . 3
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20 | 9, 19 | jctir 313 |
. 2
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21 | df-f 5259 |
. 2
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22 | 20, 21 | sylibr 134 |
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-in1 615 ax-in2 616 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-14 2167 ax-ext 2175 ax-sep 4148 ax-pow 4204 ax-pr 4239 |
This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-fal 1370 df-nf 1472 df-sb 1774 df-eu 2045 df-mo 2046 df-clab 2180 df-cleq 2186 df-clel 2189 df-nfc 2325 df-ne 2365 df-ral 2477 df-rex 2478 df-v 2762 df-dif 3156 df-un 3158 df-in 3160 df-ss 3167 df-nul 3448 df-pw 3604 df-sn 3625 df-pr 3626 df-op 3628 df-br 4031 df-opab 4092 df-id 4325 df-xp 4666 df-rel 4667 df-cnv 4668 df-co 4669 df-dm 4670 df-rn 4671 df-fun 5257 df-fn 5258 df-f 5259 |
This theorem is referenced by: (None) |
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