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Mirrors > Home > ILE Home > Th. List > lssex | Unicode version |
Description: Existence of a linear subspace. (Contributed by Jim Kingdon, 27-Apr-2025.) |
Ref | Expression |
---|---|
lssex |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | basfn 12565 |
. . . . . 6
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2 | vex 2755 |
. . . . . . 7
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3 | 2 | a1i 9 |
. . . . . 6
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4 | funfvex 5548 |
. . . . . . 7
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5 | 4 | funfni 5332 |
. . . . . 6
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6 | 1, 3, 5 | sylancr 414 |
. . . . 5
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7 | 6 | pwexd 4196 |
. . . 4
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8 | rabexg 4161 |
. . . 4
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9 | 7, 8 | syl 14 |
. . 3
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10 | 9 | alrimiv 1885 |
. 2
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11 | df-lssm 13662 |
. . 3
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12 | 11 | mptfvex 5618 |
. 2
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13 | 10, 12 | mpancom 422 |
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-13 2162 ax-14 2163 ax-ext 2171 ax-sep 4136 ax-pow 4189 ax-pr 4224 ax-un 4448 ax-cnex 7927 ax-resscn 7928 ax-1re 7930 ax-addrcl 7933 |
This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-nf 1472 df-sb 1774 df-eu 2041 df-mo 2042 df-clab 2176 df-cleq 2182 df-clel 2185 df-nfc 2321 df-ral 2473 df-rex 2474 df-rab 2477 df-v 2754 df-sbc 2978 df-csb 3073 df-un 3148 df-in 3150 df-ss 3157 df-pw 3592 df-sn 3613 df-pr 3614 df-op 3616 df-uni 3825 df-int 3860 df-br 4019 df-opab 4080 df-mpt 4081 df-id 4308 df-xp 4647 df-rel 4648 df-cnv 4649 df-co 4650 df-dm 4651 df-rn 4652 df-res 4653 df-iota 5193 df-fun 5234 df-fn 5235 df-fv 5240 df-inn 8945 df-ndx 12510 df-slot 12511 df-base 12513 df-lssm 13662 |
This theorem is referenced by: lidlex 13782 |
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