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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 11134 | . 2 ⊢ 0 ∈ ℝ | |
| 2 | mnflt 13037 | . 2 ⊢ (0 ∈ ℝ → -∞ < 0) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ -∞ < 0 |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2113 class class class wbr 5098 ℝcr 11025 0cc0 11026 -∞cmnf 11164 < clt 11166 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-ext 2708 ax-sep 5241 ax-nul 5251 ax-pow 5310 ax-pr 5377 ax-un 7680 ax-cnex 11082 ax-1cn 11084 ax-addrcl 11087 ax-rnegex 11097 ax-cnre 11099 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-sb 2068 df-clab 2715 df-cleq 2728 df-clel 2811 df-ral 3052 df-rex 3061 df-rab 3400 df-v 3442 df-dif 3904 df-un 3906 df-ss 3918 df-nul 4286 df-if 4480 df-pw 4556 df-sn 4581 df-pr 4583 df-op 4587 df-uni 4864 df-br 5099 df-opab 5161 df-xp 5630 df-pnf 11168 df-mnf 11169 df-xr 11170 df-ltxr 11171 |
| This theorem is referenced by: ge0gtmnf 13087 xsubge0 13176 sgnmnf 15018 leordtval2 23156 mnfnei 23165 ovolicopnf 25481 voliunlem3 25509 volsup 25513 volivth 25564 itg2seq 25699 itg2monolem2 25708 deg1lt0 26052 plypf1 26173 xrge00 33096 dvasin 37901 readvrec2 42612 readvrec 42613 hbtlem5 43366 xrge0nemnfd 45573 xrpnf 45725 fourierdlem87 46433 fouriersw 46471 gsumge0cl 46611 sge0pr 46634 sge0ssre 46637 |
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