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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 11198 | . 2 ⊢ 0 ∈ ℝ | |
| 2 | mnflt 13139 | . 2 ⊢ (0 ∈ ℝ → -∞ < 0) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ -∞ < 0 |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2145 class class class wbr 5105 ℝcr 11087 0cc0 11088 -∞cmnf 11229 < clt 11231 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1818 ax-4 1832 ax-5 1933 ax-6 1990 ax-7 2031 ax-8 2147 ax-9 2155 ax-ext 2737 ax-sep 5251 ax-pow 5327 ax-pr 5395 ax-un 7722 ax-cnex 11144 ax-1cn 11146 ax-addrcl 11149 ax-rnegex 11159 ax-cnre 11161 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1103 df-tru 1566 df-fal 1576 df-ex 1803 df-sb 2094 df-clab 2744 df-cleq 2757 df-clel 2840 df-ral 3080 df-rex 3090 df-rab 3418 df-v 3459 df-dif 3910 df-un 3912 df-in 3914 df-ss 3924 df-nul 4289 df-if 4484 df-pw 4560 df-sn 4586 df-pr 4588 df-op 4592 df-uni 4869 df-br 5106 df-opab 5168 df-xp 5658 df-pnf 11233 df-mnf 11234 df-xr 11235 df-ltxr 11236 |
| This theorem is referenced by: ge0gtmnf 13189 xsubge0 13278 sgnmnf 15122 leordtval2 23330 mnfnei 23339 ovolicopnf 25644 voliunlem3 25672 volsup 25676 volivth 25727 itg2seq 25862 itg2monolem2 25871 deg1lt0 26209 plypf1 26330 xrge00 33247 dvasin 38215 readvrec2 42982 readvrec 42983 hbtlem5 43717 xrge0nemnfd 45906 xrpnf 46057 fourierdlem87 46765 fouriersw 46803 gsumge0cl 46943 sge0pr 46966 sge0ssre 46969 |
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