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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 10642 | . 2 ⊢ 0 ∈ ℝ | |
2 | ltpnf 12514 | . 2 ⊢ (0 ∈ ℝ → 0 < +∞) | |
3 | 1, 2 | ax-mp 5 | 1 ⊢ 0 < +∞ |
Colors of variables: wff setvar class |
Syntax hints: ∈ wcel 2110 class class class wbr 5065 ℝcr 10535 0cc0 10536 +∞cpnf 10671 < clt 10674 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1792 ax-4 1806 ax-5 1907 ax-6 1966 ax-7 2011 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2157 ax-12 2173 ax-ext 2793 ax-sep 5202 ax-nul 5209 ax-pow 5265 ax-pr 5329 ax-un 7460 ax-cnex 10592 ax-1cn 10594 ax-addrcl 10597 ax-rnegex 10607 ax-cnre 10609 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3an 1085 df-tru 1536 df-ex 1777 df-nf 1781 df-sb 2066 df-mo 2618 df-eu 2650 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ral 3143 df-rex 3144 df-rab 3147 df-v 3496 df-dif 3938 df-un 3940 df-in 3942 df-ss 3951 df-nul 4291 df-if 4467 df-pw 4540 df-sn 4567 df-pr 4569 df-op 4573 df-uni 4838 df-br 5066 df-opab 5128 df-xp 5560 df-pnf 10676 df-xr 10678 df-ltxr 10679 |
This theorem is referenced by: xmulgt0 12675 reltxrnmnf 12734 hashneq0 13724 hashge2el2dif 13837 sgnpnf 14451 pnfnei 21827 0bdop 29769 xlt2addrd 30481 xnn0gt0 30493 xrge0mulc1cn 31184 pnfneige0 31194 lmxrge0 31195 mbfposadd 34938 ftc1anclem5 34970 fourierdlem111 42501 fouriersw 42515 |
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