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Description: Any translation is one of our F s. TODO: fix comment, move to its own block maybe? Would this help for cdlemf ? (Contributed by NM, 17-Apr-2013)
| Ref | Expression | ||
|---|---|---|---|
| Hypotheses | cdlemg1c.l | |- .<_ = ( le ` K ) |
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| cdlemg1c.a | |- A = ( Atoms ` K ) |
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| cdlemg1c.h | |- H = ( LHyp ` K ) |
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| cdlemg1c.t | |- T = ( ( LTrn ` K ) ` W ) |
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| Assertion | cdlemg1cex | |- ( ( K e. HL /\ W e. H ) -> ( F e. T <-> E. p e. A E. q e. A ( -. p .<_ W /\ -. q .<_ W /\ F = ( iota_ f e. T ( f ` p ) = q ) ) ) ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | cdlemg1c.l | |- .<_ = ( le ` K ) |
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| 2 | cdlemg1c.a | |- A = ( Atoms ` K ) |
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| 3 | cdlemg1c.h | |- H = ( LHyp ` K ) |
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| 4 | cdlemg1c.t | |- T = ( ( LTrn ` K ) ` W ) |
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| 5 | 1 2 3 4 | ltrnel | |- ( ( ( K e. HL /\ W e. H ) /\ F e. T /\ ( p e. A /\ -. p .<_ W ) ) -> ( ( F ` p ) e. A /\ -. ( F ` p ) .<_ W ) ) |
| 6 | 5 | 3expa | |- ( ( ( ( K e. HL /\ W e. H ) /\ F e. T ) /\ ( p e. A /\ -. p .<_ W ) ) -> ( ( F ` p ) e. A /\ -. ( F ` p ) .<_ W ) ) |
| 7 | 6 | simpld | |- ( ( ( ( K e. HL /\ W e. H ) /\ F e. T ) /\ ( p e. A /\ -. p .<_ W ) ) -> ( F ` p ) e. A ) |
| 8 | simprr | |- ( ( ( ( K e. HL /\ W e. H ) /\ F e. T ) /\ ( p e. A /\ -. p .<_ W ) ) -> -. p .<_ W ) |
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| 9 | 6 | simprd | |- ( ( ( ( K e. HL /\ W e. H ) /\ F e. T ) /\ ( p e. A /\ -. p .<_ W ) ) -> -. ( F ` p ) .<_ W ) |
| 10 | simpll | |- ( ( ( ( K e. HL /\ W e. H ) /\ F e. T ) /\ ( p e. A /\ -. p .<_ W ) ) -> ( K e. HL /\ W e. H ) ) |
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| 11 | simpr | |- ( ( ( ( K e. HL /\ W e. H ) /\ F e. T ) /\ ( p e. A /\ -. p .<_ W ) ) -> ( p e. A /\ -. p .<_ W ) ) |
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| 12 | simplr | |- ( ( ( ( K e. HL /\ W e. H ) /\ F e. T ) /\ ( p e. A /\ -. p .<_ W ) ) -> F e. T ) |
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| 13 | 1 2 3 4 | cdlemeiota | |- ( ( ( K e. HL /\ W e. H ) /\ ( p e. A /\ -. p .<_ W ) /\ F e. T ) -> F = ( iota_ f e. T ( f ` p ) = ( F ` p ) ) ) |
| 14 | 10 11 12 13 | syl3anc | |- ( ( ( ( K e. HL /\ W e. H ) /\ F e. T ) /\ ( p e. A /\ -. p .<_ W ) ) -> F = ( iota_ f e. T ( f ` p ) = ( F ` p ) ) ) |
| 15 | breq1 | |- ( q = ( F ` p ) -> ( q .<_ W <-> ( F ` p ) .<_ W ) ) |
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| 16 | 15 | notbid | |- ( q = ( F ` p ) -> ( -. q .<_ W <-> -. ( F ` p ) .<_ W ) ) |
| 17 | eqeq2 | |- ( q = ( F ` p ) -> ( ( f ` p ) = q <-> ( f ` p ) = ( F ` p ) ) ) |
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| 18 | 17 | riotabidv | |- ( q = ( F ` p ) -> ( iota_ f e. T ( f ` p ) = q ) = ( iota_ f e. T ( f ` p ) = ( F ` p ) ) ) |
| 19 | 18 | eqeq2d | |- ( q = ( F ` p ) -> ( F = ( iota_ f e. T ( f ` p ) = q ) <-> F = ( iota_ f e. T ( f ` p ) = ( F ` p ) ) ) ) |
| 20 | 16 19 | 3anbi23d | |- ( q = ( F ` p ) -> ( ( -. p .<_ W /\ -. q .<_ W /\ F = ( iota_ f e. T ( f ` p ) = q ) ) <-> ( -. p .<_ W /\ -. ( F ` p ) .<_ W /\ F = ( iota_ f e. T ( f ` p ) = ( F ` p ) ) ) ) ) |
| 21 | 20 | rspcev | |- ( ( ( F ` p ) e. A /\ ( -. p .<_ W /\ -. ( F ` p ) .<_ W /\ F = ( iota_ f e. T ( f ` p ) = ( F ` p ) ) ) ) -> E. q e. A ( -. p .<_ W /\ -. q .<_ W /\ F = ( iota_ f e. T ( f ` p ) = q ) ) ) |
| 22 | 7 8 9 14 21 | syl13anc | |- ( ( ( ( K e. HL /\ W e. H ) /\ F e. T ) /\ ( p e. A /\ -. p .<_ W ) ) -> E. q e. A ( -. p .<_ W /\ -. q .<_ W /\ F = ( iota_ f e. T ( f ` p ) = q ) ) ) |
| 23 | 1 2 3 | lhpexnle | |- ( ( K e. HL /\ W e. H ) -> E. p e. A -. p .<_ W ) |
| 24 | 23 | adantr | |- ( ( ( K e. HL /\ W e. H ) /\ F e. T ) -> E. p e. A -. p .<_ W ) |
| 25 | 22 24 | reximddv | |- ( ( ( K e. HL /\ W e. H ) /\ F e. T ) -> E. p e. A E. q e. A ( -. p .<_ W /\ -. q .<_ W /\ F = ( iota_ f e. T ( f ` p ) = q ) ) ) |
| 26 | 25 | ex | |- ( ( K e. HL /\ W e. H ) -> ( F e. T -> E. p e. A E. q e. A ( -. p .<_ W /\ -. q .<_ W /\ F = ( iota_ f e. T ( f ` p ) = q ) ) ) ) |
| 27 | simp1 | |- ( ( ( K e. HL /\ W e. H ) /\ ( p e. A /\ q e. A ) /\ ( -. p .<_ W /\ -. q .<_ W /\ F = ( iota_ f e. T ( f ` p ) = q ) ) ) -> ( K e. HL /\ W e. H ) ) |
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| 28 | simp2l | |- ( ( ( K e. HL /\ W e. H ) /\ ( p e. A /\ q e. A ) /\ ( -. p .<_ W /\ -. q .<_ W /\ F = ( iota_ f e. T ( f ` p ) = q ) ) ) -> p e. A ) |
|
| 29 | simp31 | |- ( ( ( K e. HL /\ W e. H ) /\ ( p e. A /\ q e. A ) /\ ( -. p .<_ W /\ -. q .<_ W /\ F = ( iota_ f e. T ( f ` p ) = q ) ) ) -> -. p .<_ W ) |
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| 30 | 28 29 | jca | |- ( ( ( K e. HL /\ W e. H ) /\ ( p e. A /\ q e. A ) /\ ( -. p .<_ W /\ -. q .<_ W /\ F = ( iota_ f e. T ( f ` p ) = q ) ) ) -> ( p e. A /\ -. p .<_ W ) ) |
| 31 | simp2r | |- ( ( ( K e. HL /\ W e. H ) /\ ( p e. A /\ q e. A ) /\ ( -. p .<_ W /\ -. q .<_ W /\ F = ( iota_ f e. T ( f ` p ) = q ) ) ) -> q e. A ) |
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| 32 | simp32 | |- ( ( ( K e. HL /\ W e. H ) /\ ( p e. A /\ q e. A ) /\ ( -. p .<_ W /\ -. q .<_ W /\ F = ( iota_ f e. T ( f ` p ) = q ) ) ) -> -. q .<_ W ) |
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| 33 | 31 32 | jca | |- ( ( ( K e. HL /\ W e. H ) /\ ( p e. A /\ q e. A ) /\ ( -. p .<_ W /\ -. q .<_ W /\ F = ( iota_ f e. T ( f ` p ) = q ) ) ) -> ( q e. A /\ -. q .<_ W ) ) |
| 34 | simp33 | |- ( ( ( K e. HL /\ W e. H ) /\ ( p e. A /\ q e. A ) /\ ( -. p .<_ W /\ -. q .<_ W /\ F = ( iota_ f e. T ( f ` p ) = q ) ) ) -> F = ( iota_ f e. T ( f ` p ) = q ) ) |
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| 35 | 1 2 3 4 | cdlemg1ci2 | |- ( ( ( ( K e. HL /\ W e. H ) /\ ( p e. A /\ -. p .<_ W ) /\ ( q e. A /\ -. q .<_ W ) ) /\ F = ( iota_ f e. T ( f ` p ) = q ) ) -> F e. T ) |
| 36 | 27 30 33 34 35 | syl31anc | |- ( ( ( K e. HL /\ W e. H ) /\ ( p e. A /\ q e. A ) /\ ( -. p .<_ W /\ -. q .<_ W /\ F = ( iota_ f e. T ( f ` p ) = q ) ) ) -> F e. T ) |
| 37 | 36 | 3exp | |- ( ( K e. HL /\ W e. H ) -> ( ( p e. A /\ q e. A ) -> ( ( -. p .<_ W /\ -. q .<_ W /\ F = ( iota_ f e. T ( f ` p ) = q ) ) -> F e. T ) ) ) |
| 38 | 37 | rexlimdvv | |- ( ( K e. HL /\ W e. H ) -> ( E. p e. A E. q e. A ( -. p .<_ W /\ -. q .<_ W /\ F = ( iota_ f e. T ( f ` p ) = q ) ) -> F e. T ) ) |
| 39 | 26 38 | impbid | |- ( ( K e. HL /\ W e. H ) -> ( F e. T <-> E. p e. A E. q e. A ( -. p .<_ W /\ -. q .<_ W /\ F = ( iota_ f e. T ( f ` p ) = q ) ) ) ) |