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Mirrors > Home > ILE Home > Th. List > infclti | Unicode version |
Description: An infimum belongs to its base class (closure law). See also inflbti 7085 and infglbti 7086. (Contributed by Jim Kingdon, 17-Dec-2021.) |
Ref | Expression |
---|---|
infclti.ti |
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infclti.ex |
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Ref | Expression |
---|---|
infclti |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-inf 7046 |
. 2
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2 | infclti.ti |
. . . 4
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3 | 2 | cnvti 7080 |
. . 3
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4 | infclti.ex |
. . . 4
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5 | 4 | cnvinfex 7079 |
. . 3
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6 | 3, 5 | supclti 7059 |
. 2
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7 | 1, 6 | eqeltrid 2280 |
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-ral 2477 df-rex 2478 df-reu 2479 df-rmo 2480 df-rab 2481 df-v 2762 df-sbc 2987 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-cnv 4668 df-iota 5216 df-riota 5874 df-sup 7045 df-inf 7046 |
This theorem is referenced by: infrenegsupex 9662 supminfex 9665 infregelbex 9666 infxrnegsupex 11409 infssuzledc 12090 |
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