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Mirrors > Home > MPE Home > Th. List > mnflt0 | Structured version Visualization version GIF version |
Description: Minus infinity is less than 0. (Contributed by David A. Wheeler, 8-Dec-2018.) |
Ref | Expression |
---|---|
mnflt0 | ⊢ -∞ < 0 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 0re 10977 | . 2 ⊢ 0 ∈ ℝ | |
2 | mnflt 12859 | . 2 ⊢ (0 ∈ ℝ → -∞ < 0) | |
3 | 1, 2 | ax-mp 5 | 1 ⊢ -∞ < 0 |
Colors of variables: wff setvar class |
Syntax hints: ∈ wcel 2106 class class class wbr 5074 ℝcr 10870 0cc0 10871 -∞cmnf 11007 < clt 11009 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-ext 2709 ax-sep 5223 ax-nul 5230 ax-pow 5288 ax-pr 5352 ax-un 7588 ax-cnex 10927 ax-1cn 10929 ax-addrcl 10932 ax-rnegex 10942 ax-cnre 10944 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3an 1088 df-tru 1542 df-fal 1552 df-ex 1783 df-sb 2068 df-clab 2716 df-cleq 2730 df-clel 2816 df-ral 3069 df-rex 3070 df-rab 3073 df-v 3434 df-dif 3890 df-un 3892 df-in 3894 df-ss 3904 df-nul 4257 df-if 4460 df-pw 4535 df-sn 4562 df-pr 4564 df-op 4568 df-uni 4840 df-br 5075 df-opab 5137 df-xp 5595 df-pnf 11011 df-mnf 11012 df-xr 11013 df-ltxr 11014 |
This theorem is referenced by: ge0gtmnf 12906 xsubge0 12995 sgnmnf 14806 leordtval2 22363 mnfnei 22372 ovolicopnf 24688 voliunlem3 24716 volsup 24720 volivth 24771 itg2seq 24907 itg2monolem2 24916 deg1lt0 25256 plypf1 25373 xrge00 31295 dvasin 35861 hbtlem5 40953 xrge0nemnfd 42871 xrpnf 43026 fourierdlem87 43734 fouriersw 43772 gsumge0cl 43909 sge0pr 43932 sge0ssre 43935 |
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