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Mirrors > Home > ILE Home > Th. List > invdisj | Unicode version |
Description: If there is a function
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Ref | Expression |
---|---|
invdisj |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | nfra2xy 2536 |
. . 3
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2 | df-ral 2477 |
. . . . 5
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3 | rsp 2541 |
. . . . . . . . 9
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4 | eqcom 2195 |
. . . . . . . . 9
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5 | 3, 4 | imbitrdi 161 |
. . . . . . . 8
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6 | 5 | imim2i 12 |
. . . . . . 7
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7 | 6 | impd 254 |
. . . . . 6
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8 | 7 | alimi 1466 |
. . . . 5
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9 | 2, 8 | sylbi 121 |
. . . 4
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10 | mo2icl 2939 |
. . . 4
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11 | 9, 10 | syl 14 |
. . 3
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12 | 1, 11 | alrimi 1533 |
. 2
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13 | dfdisj2 4008 |
. 2
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14 | 12, 13 | 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-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-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-rmo 2480 df-v 2762 df-disj 4007 |
This theorem is referenced by: phisum 12378 lgsquadlem1 15191 |
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