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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 11146 | . 2 ⊢ 0 ∈ ℝ | |
| 2 | mnflt 13074 | . 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 5085 ℝcr 11037 0cc0 11038 -∞cmnf 11177 < clt 11179 |
| 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 2708 ax-sep 5231 ax-pow 5307 ax-pr 5375 ax-un 7689 ax-cnex 11094 ax-1cn 11096 ax-addrcl 11099 ax-rnegex 11109 ax-cnre 11111 |
| 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 2715 df-cleq 2728 df-clel 2811 df-ral 3052 df-rex 3062 df-rab 3390 df-v 3431 df-dif 3892 df-un 3894 df-in 3896 df-ss 3906 df-nul 4274 df-if 4467 df-pw 4543 df-sn 4568 df-pr 4570 df-op 4574 df-uni 4851 df-br 5086 df-opab 5148 df-xp 5637 df-pnf 11181 df-mnf 11182 df-xr 11183 df-ltxr 11184 |
| This theorem is referenced by: ge0gtmnf 13124 xsubge0 13213 sgnmnf 15057 leordtval2 23177 mnfnei 23186 ovolicopnf 25491 voliunlem3 25519 volsup 25523 volivth 25574 itg2seq 25709 itg2monolem2 25718 deg1lt0 26056 plypf1 26177 xrge00 33074 dvasin 38025 readvrec2 42793 readvrec 42794 hbtlem5 43556 xrge0nemnfd 45762 xrpnf 45913 fourierdlem87 46621 fouriersw 46659 gsumge0cl 46799 sge0pr 46822 sge0ssre 46825 |
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