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Mirrors > Home > ILE Home > Th. List > ltpnf | Unicode version |
Description: Any (finite) real is less than plus infinity. (Contributed by NM, 14-Oct-2005.) |
Ref | Expression |
---|---|
ltpnf |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eqid 2187 |
. . . 4
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2 | orc 713 |
. . . 4
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3 | 1, 2 | mpan2 425 |
. . 3
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4 | 3 | olcd 735 |
. 2
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5 | rexr 8016 |
. . 3
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6 | pnfxr 8023 |
. . 3
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7 | ltxr 9788 |
. . 3
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8 | 5, 6, 7 | sylancl 413 |
. 2
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9 | 4, 8 | mpbird 167 |
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 1457 ax-7 1458 ax-gen 1459 ax-ie1 1503 ax-ie2 1504 ax-8 1514 ax-10 1515 ax-11 1516 ax-i12 1517 ax-bndl 1519 ax-4 1520 ax-17 1536 ax-i9 1540 ax-ial 1544 ax-i5r 1545 ax-13 2160 ax-14 2161 ax-ext 2169 ax-sep 4133 ax-pow 4186 ax-pr 4221 ax-un 4445 ax-cnex 7915 |
This theorem depends on definitions: df-bi 117 df-3an 981 df-tru 1366 df-nf 1471 df-sb 1773 df-eu 2039 df-mo 2040 df-clab 2174 df-cleq 2180 df-clel 2183 df-nfc 2318 df-ral 2470 df-rex 2471 df-v 2751 df-un 3145 df-in 3147 df-ss 3154 df-pw 3589 df-sn 3610 df-pr 3611 df-op 3613 df-uni 3822 df-br 4016 df-opab 4077 df-xp 4644 df-pnf 8007 df-xr 8009 df-ltxr 8010 |
This theorem is referenced by: ltpnfd 9794 0ltpnf 9795 xrlttr 9808 xrltso 9809 xrlttri3 9810 nltpnft 9827 npnflt 9828 xrrebnd 9832 xrre 9833 xltnegi 9848 xltadd1 9889 xposdif 9895 elioc2 9949 elicc2 9951 ioomax 9961 ioopos 9963 elioopnf 9980 elicopnf 9982 qbtwnxr 10271 dfrp2 10277 filtinf 10784 xrmaxltsup 11279 fprodge0 11658 fprodge1 11660 xblss2ps 14175 |
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