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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 11211 | . 2 ⊢ 0 ∈ ℝ | |
| 2 | mnflt 13149 | . 2 ⊢ (0 ∈ ℝ → -∞ < 0) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ -∞ < 0 |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2143 class class class wbr 5110 ℝcr 11100 0cc0 11101 -∞cmnf 11242 < clt 11244 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-8 2145 ax-9 2153 ax-ext 2735 ax-sep 5258 ax-pow 5338 ax-pr 5406 ax-un 7734 ax-cnex 11157 ax-1cn 11159 ax-addrcl 11162 ax-rnegex 11172 ax-cnre 11174 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1810 df-sb 2097 df-clab 2742 df-cleq 2755 df-clel 2838 df-ral 3080 df-rex 3090 df-rab 3417 df-v 3457 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-nul 4288 df-if 4489 df-pw 4565 df-sn 4591 df-pr 4593 df-op 4597 df-uni 4874 df-br 5111 df-opab 5175 df-xp 5669 df-pnf 11246 df-mnf 11247 df-xr 11248 df-ltxr 11249 |
| This theorem is referenced by: ge0gtmnf 13199 xsubge0 13288 sgnmnf 15134 leordtval2 23350 mnfnei 23359 ovolicopnf 25664 voliunlem3 25692 volsup 25696 volivth 25747 itg2seq 25882 itg2monolem2 25891 deg1lt0 26229 plypf1 26350 xrge00 33312 dvasin 38333 readvrec2 43100 readvrec 43101 hbtlem5 43835 xrge0nemnfd 46028 xrpnf 46179 fourierdlem87 46887 fouriersw 46925 gsumge0cl 47065 sge0pr 47088 sge0ssre 47091 |
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