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Mirrors > Home > ILE Home > Th. List > mptfvex | Unicode version |
Description: Sufficient condition for a maps-to notation to be set-like. (Contributed by Mario Carneiro, 3-Jul-2019.) |
Ref | Expression |
---|---|
fvmpt2.1 |
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Ref | Expression |
---|---|
mptfvex |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | csbeq1 2912 |
. . 3
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2 | fvmpt2.1 |
. . . 4
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3 | nfcv 2220 |
. . . . 5
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4 | nfcsb1v 2939 |
. . . . 5
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5 | csbeq1a 2917 |
. . . . 5
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6 | 3, 4, 5 | cbvmpt 3880 |
. . . 4
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7 | 2, 6 | eqtri 2102 |
. . 3
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8 | 1, 7 | fvmptss2 5279 |
. 2
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9 | elex 2611 |
. . . . . 6
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10 | 9 | alimi 1385 |
. . . . 5
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11 | 3 | nfel1 2230 |
. . . . . 6
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12 | 4 | nfel1 2230 |
. . . . . 6
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13 | 5 | eleq1d 2148 |
. . . . . 6
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14 | 11, 12, 13 | cbval 1678 |
. . . . 5
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15 | 10, 14 | sylib 120 |
. . . 4
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16 | 1 | eleq1d 2148 |
. . . . 5
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17 | 16 | spcgv 2686 |
. . . 4
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18 | 15, 17 | syl5 32 |
. . 3
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19 | 18 | impcom 123 |
. 2
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20 | ssexg 3925 |
. 2
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21 | 8, 19, 20 | sylancr 405 |
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-io 663 ax-5 1377 ax-7 1378 ax-gen 1379 ax-ie1 1423 ax-ie2 1424 ax-8 1436 ax-10 1437 ax-11 1438 ax-i12 1439 ax-bndl 1440 ax-4 1441 ax-14 1446 ax-17 1460 ax-i9 1464 ax-ial 1468 ax-i5r 1469 ax-ext 2064 ax-sep 3904 ax-pow 3956 ax-pr 3972 |
This theorem depends on definitions: df-bi 115 df-3an 922 df-tru 1288 df-nf 1391 df-sb 1687 df-eu 1945 df-mo 1946 df-clab 2069 df-cleq 2075 df-clel 2078 df-nfc 2209 df-ral 2354 df-rex 2355 df-v 2604 df-sbc 2817 df-csb 2910 df-un 2978 df-in 2980 df-ss 2987 df-pw 3392 df-sn 3412 df-pr 3413 df-op 3415 df-uni 3610 df-br 3794 df-opab 3848 df-mpt 3849 df-id 4056 df-xp 4377 df-rel 4378 df-cnv 4379 df-co 4380 df-iota 4897 df-fun 4934 df-fv 4940 |
This theorem is referenced by: mpt2fvex 5860 xpcomco 6370 |
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