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Theorem opnlen0 39634
Description: An element not less than another is nonzero. TODO: Look for uses of necon3bd 2946 and op0le 39632 to see if this is useful elsewhere. (Contributed by NM, 5-May-2013.)
Hypotheses
Ref Expression
op0le.b 𝐵 = (Base‘𝐾)
op0le.l = (le‘𝐾)
op0le.z 0 = (0.‘𝐾)
Assertion
Ref Expression
opnlen0 (((𝐾 ∈ OP ∧ 𝑋𝐵𝑌𝐵) ∧ ¬ 𝑋 𝑌) → 𝑋0 )

Proof of Theorem opnlen0
StepHypRef Expression
1 op0le.b . . . . . 6 𝐵 = (Base‘𝐾)
2 op0le.l . . . . . 6 = (le‘𝐾)
3 op0le.z . . . . . 6 0 = (0.‘𝐾)
41, 2, 3op0le 39632 . . . . 5 ((𝐾 ∈ OP ∧ 𝑌𝐵) → 0 𝑌)
543adant2 1132 . . . 4 ((𝐾 ∈ OP ∧ 𝑋𝐵𝑌𝐵) → 0 𝑌)
6 breq1 5088 . . . 4 (𝑋 = 0 → (𝑋 𝑌0 𝑌))
75, 6syl5ibrcom 247 . . 3 ((𝐾 ∈ OP ∧ 𝑋𝐵𝑌𝐵) → (𝑋 = 0𝑋 𝑌))
87necon3bd 2946 . 2 ((𝐾 ∈ OP ∧ 𝑋𝐵𝑌𝐵) → (¬ 𝑋 𝑌𝑋0 ))
98imp 406 1 (((𝐾 ∈ OP ∧ 𝑋𝐵𝑌𝐵) ∧ ¬ 𝑋 𝑌) → 𝑋0 )
Colors of variables: wff setvar class
Syntax hints:  ¬ wn 3  wi 4  wa 395  w3a 1087   = wceq 1542  wcel 2114  wne 2932   class class class wbr 5085  cfv 6498  Basecbs 17179  lecple 17227  0.cp0 18387  OPcops 39618
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-10 2147  ax-11 2163  ax-12 2185  ax-ext 2708  ax-rep 5212  ax-sep 5231  ax-nul 5241  ax-pow 5307  ax-pr 5375
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-nf 1786  df-sb 2069  df-mo 2539  df-eu 2569  df-clab 2715  df-cleq 2728  df-clel 2811  df-nfc 2885  df-ne 2933  df-ral 3052  df-rex 3062  df-rmo 3342  df-reu 3343  df-rab 3390  df-v 3431  df-sbc 3729  df-csb 3838  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-iun 4935  df-br 5086  df-opab 5148  df-mpt 5167  df-id 5526  df-xp 5637  df-rel 5638  df-cnv 5639  df-co 5640  df-dm 5641  df-rn 5642  df-res 5643  df-ima 5644  df-iota 6454  df-fun 6500  df-fn 6501  df-f 6502  df-f1 6503  df-fo 6504  df-f1o 6505  df-fv 6506  df-riota 7324  df-ov 7370  df-glb 18311  df-p0 18389  df-oposet 39622
This theorem is referenced by:  cdlemg12e  41093
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