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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 10645 | . 2 ⊢ 0 ∈ ℝ | |
2 | mnflt 12521 | . 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 5068 ℝcr 10538 0cc0 10539 -∞cmnf 10675 < clt 10677 |
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 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2795 ax-sep 5205 ax-nul 5212 ax-pow 5268 ax-pr 5332 ax-un 7463 ax-cnex 10595 ax-1cn 10597 ax-addrcl 10600 ax-rnegex 10610 ax-cnre 10612 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3an 1085 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-mo 2622 df-eu 2654 df-clab 2802 df-cleq 2816 df-clel 2895 df-nfc 2965 df-ral 3145 df-rex 3146 df-rab 3149 df-v 3498 df-dif 3941 df-un 3943 df-in 3945 df-ss 3954 df-nul 4294 df-if 4470 df-pw 4543 df-sn 4570 df-pr 4572 df-op 4576 df-uni 4841 df-br 5069 df-opab 5131 df-xp 5563 df-pnf 10679 df-mnf 10680 df-xr 10681 df-ltxr 10682 |
This theorem is referenced by: ge0gtmnf 12568 xsubge0 12657 sgnmnf 14456 leordtval2 21822 mnfnei 21831 ovolicopnf 24127 voliunlem3 24155 volsup 24159 volivth 24210 itg2seq 24345 itg2monolem2 24354 deg1lt0 24687 plypf1 24804 xrge00 30675 dvasin 34980 hbtlem5 39735 xrge0nemnfd 41607 xrpnf 41769 fourierdlem87 42485 fouriersw 42523 gsumge0cl 42660 sge0pr 42683 sge0ssre 42686 |
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