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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 3084 |
. . 3
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2 | fvmpt2.1 |
. . . 4
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3 | nfcv 2336 |
. . . . 5
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4 | nfcsb1v 3114 |
. . . . 5
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5 | csbeq1a 3090 |
. . . . 5
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6 | 3, 4, 5 | cbvmpt 4125 |
. . . 4
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7 | 2, 6 | eqtri 2214 |
. . 3
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8 | 1, 7 | fvmptss2 5633 |
. 2
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9 | elex 2771 |
. . . . . 6
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10 | 9 | alimi 1466 |
. . . . 5
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11 | 3 | nfel1 2347 |
. . . . . 6
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12 | 4 | nfel1 2347 |
. . . . . 6
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13 | 5 | eleq1d 2262 |
. . . . . 6
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14 | 11, 12, 13 | cbval 1765 |
. . . . 5
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15 | 10, 14 | sylib 122 |
. . . 4
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16 | 1 | eleq1d 2262 |
. . . . 5
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17 | 16 | spcgv 2848 |
. . . 4
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18 | 15, 17 | syl5 32 |
. . 3
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19 | 18 | impcom 125 |
. 2
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20 | ssexg 4169 |
. 2
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21 | 8, 19, 20 | sylancr 414 |
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-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-nf 1472 df-sb 1774 df-eu 2045 df-mo 2046 df-clab 2180 df-cleq 2186 df-clel 2189 df-nfc 2325 df-ral 2477 df-rex 2478 df-v 2762 df-sbc 2987 df-csb 3082 df-un 3158 df-in 3160 df-ss 3167 df-pw 3604 df-sn 3625 df-pr 3626 df-op 3628 df-uni 3837 df-br 4031 df-opab 4092 df-mpt 4093 df-id 4325 df-xp 4666 df-rel 4667 df-cnv 4668 df-co 4669 df-iota 5216 df-fun 5257 df-fv 5263 |
This theorem is referenced by: mpofvex 6260 xpcomco 6882 lssex 13853 mopnset 14051 metuex 14054 |
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