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| Mirrors > Home > MPE Home > Th. List > 0ltpnf | Structured version Visualization version GIF version | ||
| Description: Zero is less than plus infinity. (Contributed by David A. Wheeler, 8-Dec-2018.) |
| Ref | Expression |
|---|---|
| 0ltpnf | ⊢ 0 < +∞ |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 0re 11146 | . 2 ⊢ 0 ∈ ℝ | |
| 2 | ltpnf 13071 | . 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 +∞cpnf 11176 < 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-xr 11183 df-ltxr 11184 |
| This theorem is referenced by: xmulgt0 13235 reltxrnmnf 13295 hashneq0 14326 hashge2el2dif 14442 sgnpnf 15055 pnfnei 23185 0bdop 32064 xlt2addrd 32832 xnn0gt0 32842 xrge0mulc1cn 34085 pnfneige0 34095 lmxrge0 34096 mbfposadd 37988 ftc1anclem5 38018 fourierdlem111 46645 fouriersw 46659 |
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