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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 11173 | . 2 ⊢ 0 ∈ ℝ | |
| 2 | mnflt 13115 | . 2 ⊢ (0 ∈ ℝ → -∞ < 0) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ -∞ < 0 |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2136 class class class wbr 5094 ℝcr 11062 0cc0 11063 -∞cmnf 11204 < clt 11206 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1809 ax-4 1823 ax-5 1924 ax-6 1981 ax-7 2022 ax-8 2138 ax-9 2146 ax-ext 2728 ax-sep 5240 ax-pow 5316 ax-pr 5384 ax-un 7707 ax-cnex 11119 ax-1cn 11121 ax-addrcl 11124 ax-rnegex 11134 ax-cnre 11136 |
| This theorem depends on definitions: df-bi 209 df-an 399 df-or 857 df-3an 1097 df-tru 1557 df-fal 1567 df-ex 1794 df-sb 2085 df-clab 2735 df-cleq 2748 df-clel 2831 df-ral 3071 df-rex 3081 df-rab 3409 df-v 3450 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-nul 4281 df-if 4475 df-pw 4551 df-sn 4577 df-pr 4579 df-op 4583 df-uni 4860 df-br 5095 df-opab 5157 df-xp 5646 df-pnf 11208 df-mnf 11209 df-xr 11210 df-ltxr 11211 |
| This theorem is referenced by: ge0gtmnf 13165 xsubge0 13254 sgnmnf 15098 leordtval2 23245 mnfnei 23254 ovolicopnf 25559 voliunlem3 25587 volsup 25591 volivth 25642 itg2seq 25777 itg2monolem2 25786 deg1lt0 26124 plypf1 26245 xrge00 33146 dvasin 38151 readvrec2 42918 readvrec 42919 hbtlem5 43653 xrge0nemnfd 45856 xrpnf 46007 fourierdlem87 46715 fouriersw 46753 gsumge0cl 46893 sge0pr 46916 sge0ssre 46919 |
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