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Description: Show that ( FR ) is an atom not under W when R is an atom not under W . (Contributed by NM, 18-Apr-2013)
| Ref | Expression | ||
|---|---|---|---|
| Hypotheses | cdleme32.b | |- B = ( Base ` K ) |
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| cdleme32.l | |- .<_ = ( le ` K ) |
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| cdleme32.j | |- .\/ = ( join ` K ) |
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| cdleme32.m | |- ./\ = ( meet ` K ) |
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| cdleme32.a | |- A = ( Atoms ` K ) |
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| cdleme32.h | |- H = ( LHyp ` K ) |
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| cdleme32.u | |- U = ( ( P .\/ Q ) ./\ W ) |
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| cdleme32.c | |- C = ( ( s .\/ U ) ./\ ( Q .\/ ( ( P .\/ s ) ./\ W ) ) ) |
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| cdleme32.d | |- D = ( ( t .\/ U ) ./\ ( Q .\/ ( ( P .\/ t ) ./\ W ) ) ) |
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| cdleme32.e | |- E = ( ( P .\/ Q ) ./\ ( D .\/ ( ( s .\/ t ) ./\ W ) ) ) |
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| cdleme32.i | |- I = ( iota_ y e. B A. t e. A ( ( -. t .<_ W /\ -. t .<_ ( P .\/ Q ) ) -> y = E ) ) |
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| cdleme32.n | |- N = if ( s .<_ ( P .\/ Q ) , I , C ) |
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| cdleme32.o | |- O = ( iota_ z e. B A. s e. A ( ( -. s .<_ W /\ ( s .\/ ( x ./\ W ) ) = x ) -> z = ( N .\/ ( x ./\ W ) ) ) ) |
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| cdleme32.f | |- F = ( x e. B |-> if ( ( P =/= Q /\ -. x .<_ W ) , O , x ) ) |
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| Assertion | cdleme32fvaw | |- ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( R e. A /\ -. R .<_ W ) ) -> ( ( F ` R ) e. A /\ -. ( F ` R ) .<_ W ) ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | cdleme32.b | |- B = ( Base ` K ) |
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| 2 | cdleme32.l | |- .<_ = ( le ` K ) |
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| 3 | cdleme32.j | |- .\/ = ( join ` K ) |
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| 4 | cdleme32.m | |- ./\ = ( meet ` K ) |
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| 5 | cdleme32.a | |- A = ( Atoms ` K ) |
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| 6 | cdleme32.h | |- H = ( LHyp ` K ) |
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| 7 | cdleme32.u | |- U = ( ( P .\/ Q ) ./\ W ) |
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| 8 | cdleme32.c | |- C = ( ( s .\/ U ) ./\ ( Q .\/ ( ( P .\/ s ) ./\ W ) ) ) |
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| 9 | cdleme32.d | |- D = ( ( t .\/ U ) ./\ ( Q .\/ ( ( P .\/ t ) ./\ W ) ) ) |
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| 10 | cdleme32.e | |- E = ( ( P .\/ Q ) ./\ ( D .\/ ( ( s .\/ t ) ./\ W ) ) ) |
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| 11 | cdleme32.i | |- I = ( iota_ y e. B A. t e. A ( ( -. t .<_ W /\ -. t .<_ ( P .\/ Q ) ) -> y = E ) ) |
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| 12 | cdleme32.n | |- N = if ( s .<_ ( P .\/ Q ) , I , C ) |
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| 13 | cdleme32.o | |- O = ( iota_ z e. B A. s e. A ( ( -. s .<_ W /\ ( s .\/ ( x ./\ W ) ) = x ) -> z = ( N .\/ ( x ./\ W ) ) ) ) |
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| 14 | cdleme32.f | |- F = ( x e. B |-> if ( ( P =/= Q /\ -. x .<_ W ) , O , x ) ) |
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| 15 | simplr | |- ( ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( R e. A /\ -. R .<_ W ) ) /\ P = Q ) -> ( R e. A /\ -. R .<_ W ) ) |
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| 16 | 1 5 | atbase | |- ( R e. A -> R e. B ) |
| 17 | 16 | ad2antrl | |- ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( R e. A /\ -. R .<_ W ) ) -> R e. B ) |
| 18 | 14 | cdleme31id | |- ( ( R e. B /\ P = Q ) -> ( F ` R ) = R ) |
| 19 | 17 18 | sylan | |- ( ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( R e. A /\ -. R .<_ W ) ) /\ P = Q ) -> ( F ` R ) = R ) |
| 20 | 19 | eleq1d | |- ( ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( R e. A /\ -. R .<_ W ) ) /\ P = Q ) -> ( ( F ` R ) e. A <-> R e. A ) ) |
| 21 | 19 | breq1d | |- ( ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( R e. A /\ -. R .<_ W ) ) /\ P = Q ) -> ( ( F ` R ) .<_ W <-> R .<_ W ) ) |
| 22 | 21 | notbid | |- ( ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( R e. A /\ -. R .<_ W ) ) /\ P = Q ) -> ( -. ( F ` R ) .<_ W <-> -. R .<_ W ) ) |
| 23 | 20 22 | anbi12d | |- ( ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( R e. A /\ -. R .<_ W ) ) /\ P = Q ) -> ( ( ( F ` R ) e. A /\ -. ( F ` R ) .<_ W ) <-> ( R e. A /\ -. R .<_ W ) ) ) |
| 24 | 15 23 | mpbird | |- ( ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( R e. A /\ -. R .<_ W ) ) /\ P = Q ) -> ( ( F ` R ) e. A /\ -. ( F ` R ) .<_ W ) ) |
| 25 | simp1 | |- ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( R e. A /\ -. R .<_ W ) /\ P =/= Q ) -> ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) ) |
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| 26 | simp3 | |- ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( R e. A /\ -. R .<_ W ) /\ P =/= Q ) -> P =/= Q ) |
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| 27 | simp2 | |- ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( R e. A /\ -. R .<_ W ) /\ P =/= Q ) -> ( R e. A /\ -. R .<_ W ) ) |
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| 28 | 1 2 3 4 5 6 7 8 9 10 11 12 | cdleme32snaw | |- ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( P =/= Q /\ ( R e. A /\ -. R .<_ W ) ) ) -> ( [_ R / s ]_ N e. A /\ -. [_ R / s ]_ N .<_ W ) ) |
| 29 | 25 26 27 28 | syl12anc | |- ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( R e. A /\ -. R .<_ W ) /\ P =/= Q ) -> ( [_ R / s ]_ N e. A /\ -. [_ R / s ]_ N .<_ W ) ) |
| 30 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 | cdleme32fva1 | |- ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( R e. A /\ -. R .<_ W ) /\ P =/= Q ) -> ( F ` R ) = [_ R / s ]_ N ) |
| 31 | 30 | eleq1d | |- ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( R e. A /\ -. R .<_ W ) /\ P =/= Q ) -> ( ( F ` R ) e. A <-> [_ R / s ]_ N e. A ) ) |
| 32 | 30 | breq1d | |- ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( R e. A /\ -. R .<_ W ) /\ P =/= Q ) -> ( ( F ` R ) .<_ W <-> [_ R / s ]_ N .<_ W ) ) |
| 33 | 32 | notbid | |- ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( R e. A /\ -. R .<_ W ) /\ P =/= Q ) -> ( -. ( F ` R ) .<_ W <-> -. [_ R / s ]_ N .<_ W ) ) |
| 34 | 31 33 | anbi12d | |- ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( R e. A /\ -. R .<_ W ) /\ P =/= Q ) -> ( ( ( F ` R ) e. A /\ -. ( F ` R ) .<_ W ) <-> ( [_ R / s ]_ N e. A /\ -. [_ R / s ]_ N .<_ W ) ) ) |
| 35 | 29 34 | mpbird | |- ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( R e. A /\ -. R .<_ W ) /\ P =/= Q ) -> ( ( F ` R ) e. A /\ -. ( F ` R ) .<_ W ) ) |
| 36 | 35 | 3expa | |- ( ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( R e. A /\ -. R .<_ W ) ) /\ P =/= Q ) -> ( ( F ` R ) e. A /\ -. ( F ` R ) .<_ W ) ) |
| 37 | 24 36 | pm2.61dane | |- ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( R e. A /\ -. R .<_ W ) ) -> ( ( F ` R ) e. A /\ -. ( F ` R ) .<_ W ) ) |