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Description: The set of lattice translations for a fiducial co-atom W . (Contributed by NM, 11-May-2012)
| Ref | Expression | ||
|---|---|---|---|
| Hypotheses | ltrnset.l | |- .<_ = ( le ` K ) |
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| ltrnset.j | |- .\/ = ( join ` K ) |
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| ltrnset.m | |- ./\ = ( meet ` K ) |
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| ltrnset.a | |- A = ( Atoms ` K ) |
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| ltrnset.h | |- H = ( LHyp ` K ) |
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| ltrnset.d | |- D = ( ( LDil ` K ) ` W ) |
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| ltrnset.t | |- T = ( ( LTrn ` K ) ` W ) |
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| Assertion | ltrnset | |- ( ( K e. B /\ W e. H ) -> T = { f e. D | A. p e. A A. q e. A ( ( -. p .<_ W /\ -. q .<_ W ) -> ( ( p .\/ ( f ` p ) ) ./\ W ) = ( ( q .\/ ( f ` q ) ) ./\ W ) ) } ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ltrnset.l | |- .<_ = ( le ` K ) |
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| 2 | ltrnset.j | |- .\/ = ( join ` K ) |
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| 3 | ltrnset.m | |- ./\ = ( meet ` K ) |
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| 4 | ltrnset.a | |- A = ( Atoms ` K ) |
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| 5 | ltrnset.h | |- H = ( LHyp ` K ) |
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| 6 | ltrnset.d | |- D = ( ( LDil ` K ) ` W ) |
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| 7 | ltrnset.t | |- T = ( ( LTrn ` K ) ` W ) |
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| 8 | 1 2 3 4 5 | ltrnfset | |- ( K e. B -> ( LTrn ` K ) = ( w e. H |-> { f e. ( ( LDil ` K ) ` w ) | A. p e. A A. q e. A ( ( -. p .<_ w /\ -. q .<_ w ) -> ( ( p .\/ ( f ` p ) ) ./\ w ) = ( ( q .\/ ( f ` q ) ) ./\ w ) ) } ) ) |
| 9 | 8 | fveq1d | |- ( K e. B -> ( ( LTrn ` K ) ` W ) = ( ( w e. H |-> { f e. ( ( LDil ` K ) ` w ) | A. p e. A A. q e. A ( ( -. p .<_ w /\ -. q .<_ w ) -> ( ( p .\/ ( f ` p ) ) ./\ w ) = ( ( q .\/ ( f ` q ) ) ./\ w ) ) } ) ` W ) ) |
| 10 | 7 9 | eqtrid | |- ( K e. B -> T = ( ( w e. H |-> { f e. ( ( LDil ` K ) ` w ) | A. p e. A A. q e. A ( ( -. p .<_ w /\ -. q .<_ w ) -> ( ( p .\/ ( f ` p ) ) ./\ w ) = ( ( q .\/ ( f ` q ) ) ./\ w ) ) } ) ` W ) ) |
| 11 | fveq2 | |- ( w = W -> ( ( LDil ` K ) ` w ) = ( ( LDil ` K ) ` W ) ) |
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| 12 | 11 6 | eqtr4di | |- ( w = W -> ( ( LDil ` K ) ` w ) = D ) |
| 13 | breq2 | |- ( w = W -> ( p .<_ w <-> p .<_ W ) ) |
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| 14 | 13 | notbid | |- ( w = W -> ( -. p .<_ w <-> -. p .<_ W ) ) |
| 15 | breq2 | |- ( w = W -> ( q .<_ w <-> q .<_ W ) ) |
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| 16 | 15 | notbid | |- ( w = W -> ( -. q .<_ w <-> -. q .<_ W ) ) |
| 17 | 14 16 | anbi12d | |- ( w = W -> ( ( -. p .<_ w /\ -. q .<_ w ) <-> ( -. p .<_ W /\ -. q .<_ W ) ) ) |
| 18 | oveq2 | |- ( w = W -> ( ( p .\/ ( f ` p ) ) ./\ w ) = ( ( p .\/ ( f ` p ) ) ./\ W ) ) |
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| 19 | oveq2 | |- ( w = W -> ( ( q .\/ ( f ` q ) ) ./\ w ) = ( ( q .\/ ( f ` q ) ) ./\ W ) ) |
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| 20 | 18 19 | eqeq12d | |- ( w = W -> ( ( ( p .\/ ( f ` p ) ) ./\ w ) = ( ( q .\/ ( f ` q ) ) ./\ w ) <-> ( ( p .\/ ( f ` p ) ) ./\ W ) = ( ( q .\/ ( f ` q ) ) ./\ W ) ) ) |
| 21 | 17 20 | imbi12d | |- ( w = W -> ( ( ( -. p .<_ w /\ -. q .<_ w ) -> ( ( p .\/ ( f ` p ) ) ./\ w ) = ( ( q .\/ ( f ` q ) ) ./\ w ) ) <-> ( ( -. p .<_ W /\ -. q .<_ W ) -> ( ( p .\/ ( f ` p ) ) ./\ W ) = ( ( q .\/ ( f ` q ) ) ./\ W ) ) ) ) |
| 22 | 21 | 2ralbidv | |- ( w = W -> ( A. p e. A A. q e. A ( ( -. p .<_ w /\ -. q .<_ w ) -> ( ( p .\/ ( f ` p ) ) ./\ w ) = ( ( q .\/ ( f ` q ) ) ./\ w ) ) <-> A. p e. A A. q e. A ( ( -. p .<_ W /\ -. q .<_ W ) -> ( ( p .\/ ( f ` p ) ) ./\ W ) = ( ( q .\/ ( f ` q ) ) ./\ W ) ) ) ) |
| 23 | 12 22 | rabeqbidv | |- ( w = W -> { f e. ( ( LDil ` K ) ` w ) | A. p e. A A. q e. A ( ( -. p .<_ w /\ -. q .<_ w ) -> ( ( p .\/ ( f ` p ) ) ./\ w ) = ( ( q .\/ ( f ` q ) ) ./\ w ) ) } = { f e. D | A. p e. A A. q e. A ( ( -. p .<_ W /\ -. q .<_ W ) -> ( ( p .\/ ( f ` p ) ) ./\ W ) = ( ( q .\/ ( f ` q ) ) ./\ W ) ) } ) |
| 24 | eqid | |- ( w e. H |-> { f e. ( ( LDil ` K ) ` w ) | A. p e. A A. q e. A ( ( -. p .<_ w /\ -. q .<_ w ) -> ( ( p .\/ ( f ` p ) ) ./\ w ) = ( ( q .\/ ( f ` q ) ) ./\ w ) ) } ) = ( w e. H |-> { f e. ( ( LDil ` K ) ` w ) | A. p e. A A. q e. A ( ( -. p .<_ w /\ -. q .<_ w ) -> ( ( p .\/ ( f ` p ) ) ./\ w ) = ( ( q .\/ ( f ` q ) ) ./\ w ) ) } ) |
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| 25 | 6 | fvexi | |- D e. _V |
| 26 | 25 | rabex | |- { f e. D | A. p e. A A. q e. A ( ( -. p .<_ W /\ -. q .<_ W ) -> ( ( p .\/ ( f ` p ) ) ./\ W ) = ( ( q .\/ ( f ` q ) ) ./\ W ) ) } e. _V |
| 27 | 23 24 26 | fvmpt | |- ( W e. H -> ( ( w e. H |-> { f e. ( ( LDil ` K ) ` w ) | A. p e. A A. q e. A ( ( -. p .<_ w /\ -. q .<_ w ) -> ( ( p .\/ ( f ` p ) ) ./\ w ) = ( ( q .\/ ( f ` q ) ) ./\ w ) ) } ) ` W ) = { f e. D | A. p e. A A. q e. A ( ( -. p .<_ W /\ -. q .<_ W ) -> ( ( p .\/ ( f ` p ) ) ./\ W ) = ( ( q .\/ ( f ` q ) ) ./\ W ) ) } ) |
| 28 | 10 27 | sylan9eq | |- ( ( K e. B /\ W e. H ) -> T = { f e. D | A. p e. A A. q e. A ( ( -. p .<_ W /\ -. q .<_ W ) -> ( ( p .\/ ( f ` p ) ) ./\ W ) = ( ( q .\/ ( f ` q ) ) ./\ W ) ) } ) |