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Mirrors > Home > MPE Home > Th. List > pm3.22 | Structured version Visualization version GIF version |
Description: Theorem *3.22 of [WhiteheadRussell] p. 111. (Contributed by NM, 3-Jan-2005.) (Proof shortened by Wolf Lammen, 13-Nov-2012.) |
Ref | Expression |
---|---|
pm3.22 | ⊢ ((𝜑 ∧ 𝜓) → (𝜓 ∧ 𝜑)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | pm3.21 463 | . 2 ⊢ (𝜑 → (𝜓 → (𝜓 ∧ 𝜑))) | |
2 | 1 | imp 444 | 1 ⊢ ((𝜑 ∧ 𝜓) → (𝜓 ∧ 𝜑)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 383 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 |
This theorem depends on definitions: df-bi 196 df-an 385 |
This theorem is referenced by: ancom 465 ancom2s 840 ancom1s 843 fi1uzind 13134 fi1uzindOLD 13140 cshwlen 13396 prmgapprmolem 15603 setsstruct 15727 mat1dimcrng 20102 dmatcrng 20127 cramerlem1 20312 cramer 20316 pmatcollpwscmatlem2 20414 constr3lem4 26175 constr3trllem2 26179 constr3trllem3 26180 clwwlkprop 26298 3vfriswmgra 26532 1to2vfriswmgra 26533 frg2woteq 26587 numclwwlkovfel2 26610 frgrareggt1 26643 grpoidinvlem3 26744 atomli 28625 arg-ax 31585 cnambfre 32628 prter1 33182 eliuniincex 38323 eliincex 38324 dvdsn1add 38829 fourierdlem42 39042 fourierdlem80 39079 etransclem38 39165 gbegt5 40183 uhgr3cyclex 41349 3cyclfrgrrn 41456 av-frgrareggt1 41547 c0snmhm 41705 pgrpgt2nabl 41941 |
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