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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 11137 | . 2 ⊢ 0 ∈ ℝ | |
| 2 | mnflt 13065 | . 2 ⊢ (0 ∈ ℝ → -∞ < 0) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ -∞ < 0 |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2114 class class class wbr 5086 ℝcr 11028 0cc0 11029 -∞cmnf 11168 < clt 11170 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-ext 2709 ax-sep 5231 ax-pow 5302 ax-pr 5370 ax-un 7682 ax-cnex 11085 ax-1cn 11087 ax-addrcl 11090 ax-rnegex 11100 ax-cnre 11102 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-sb 2069 df-clab 2716 df-cleq 2729 df-clel 2812 df-ral 3053 df-rex 3063 df-rab 3391 df-v 3432 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-br 5087 df-opab 5149 df-xp 5630 df-pnf 11172 df-mnf 11173 df-xr 11174 df-ltxr 11175 |
| This theorem is referenced by: ge0gtmnf 13115 xsubge0 13204 sgnmnf 15048 leordtval2 23187 mnfnei 23196 ovolicopnf 25501 voliunlem3 25529 volsup 25533 volivth 25584 itg2seq 25719 itg2monolem2 25728 deg1lt0 26066 plypf1 26187 xrge00 33089 dvasin 38039 readvrec2 42807 readvrec 42808 hbtlem5 43574 xrge0nemnfd 45780 xrpnf 45931 fourierdlem87 46639 fouriersw 46677 gsumge0cl 46817 sge0pr 46840 sge0ssre 46843 |
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