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Mirrors > Home > MPE Home > Th. List > mnflt0 | Structured version Visualization version GIF version |
Description: Minus infinity is less than 0 (common case). (Contributed by David A. Wheeler, 8-Dec-2018.) |
Ref | Expression |
---|---|
mnflt0 | ⊢ -∞ < 0 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 0re 9919 | . 2 ⊢ 0 ∈ ℝ | |
2 | mnflt 11833 | . 2 ⊢ (0 ∈ ℝ → -∞ < 0) | |
3 | 1, 2 | ax-mp 5 | 1 ⊢ -∞ < 0 |
Colors of variables: wff setvar class |
Syntax hints: ∈ wcel 1977 class class class wbr 4583 ℝcr 9814 0cc0 9815 -∞cmnf 9951 < clt 9953 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-8 1979 ax-9 1986 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 ax-sep 4709 ax-nul 4717 ax-pow 4769 ax-pr 4833 ax-un 6847 ax-cnex 9871 ax-1cn 9873 ax-icn 9874 ax-addcl 9875 ax-addrcl 9876 ax-mulcl 9877 ax-mulrcl 9878 ax-i2m1 9883 ax-1ne0 9884 ax-rnegex 9886 ax-rrecex 9887 ax-cnre 9888 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-3an 1033 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-eu 2462 df-mo 2463 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-ne 2782 df-ral 2901 df-rex 2902 df-rab 2905 df-v 3175 df-dif 3543 df-un 3545 df-in 3547 df-ss 3554 df-nul 3875 df-if 4037 df-pw 4110 df-sn 4126 df-pr 4128 df-op 4132 df-uni 4373 df-br 4584 df-opab 4644 df-xp 5044 df-iota 5768 df-fv 5812 df-ov 6552 df-pnf 9955 df-mnf 9956 df-xr 9957 df-ltxr 9958 |
This theorem is referenced by: ge0gtmnf 11877 xsubge0 11963 xrge0neqmnf 12147 sgnmnf 13683 leordtval2 20826 mnfnei 20835 ovolicopnf 23099 voliunlem3 23127 volsup 23131 volivth 23181 itg2seq 23315 itg2monolem2 23324 deg1lt0 23655 plypf1 23772 xrge00 29017 dvasin 32666 hbtlem5 36717 xrge0nemnfd 38489 fourierdlem87 39086 fouriersw 39124 gsumge0cl 39264 sge0pr 39287 sge0ssre 39290 |
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